Home / 648,009.70-972,014.55-293,715.70

Finding the Fourth Proportional to 648,009.70, 972,014.55 and 293,715.70

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Solution

The fourth proportional to 648,009.70, 972,014.55 and 293,715.70 is: 440,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,009.70 : 972,014.55 = 293,715.70 : x
  2. Step 2: Convert to fraction form
    648,009.70/972,014.55 = 293,715.70/x
  3. Step 3: Cross multiply
    648,009.70x = 972,014.55 × 293,715.70
  4. Step 4: Simplify right side
    648,009.70x = 285,495,933,963.44
  5. Step 5: Solve for x
    x = 285,495,933,963.44/648,009.70
  6. Step 6: Final answer
    x = 440,573.55

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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.