Home / 972,178.60-1,458,267.90-307,330.60

Finding the Fourth Proportional to 972,178.60, 1,458,267.90 and 307,330.60

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Solution

The fourth proportional to 972,178.60, 1,458,267.90 and 307,330.60 is: 460,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,178.60 : 1,458,267.90 = 307,330.60 : x
  2. Step 2: Convert to fraction form
    972,178.60/1,458,267.90 = 307,330.60/x
  3. Step 3: Cross multiply
    972,178.60x = 1,458,267.90 × 307,330.60
  4. Step 4: Simplify right side
    972,178.60x = 448,170,348,667.74
  5. Step 5: Solve for x
    x = 448,170,348,667.74/972,178.60
  6. Step 6: Final answer
    x = 460,995.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.