Home / 972,010.20-1,458,015.30-498,743.40

Finding the Fourth Proportional to 972,010.20, 1,458,015.30 and 498,743.40

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Solution

The fourth proportional to 972,010.20, 1,458,015.30 and 498,743.40 is: 748,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,010.20 : 1,458,015.30 = 498,743.40 : x
  2. Step 2: Convert to fraction form
    972,010.20/1,458,015.30 = 498,743.40/x
  3. Step 3: Cross multiply
    972,010.20x = 1,458,015.30 × 498,743.40
  4. Step 4: Simplify right side
    972,010.20x = 727,175,507,974.02
  5. Step 5: Solve for x
    x = 727,175,507,974.02/972,010.20
  6. Step 6: Final answer
    x = 748,115.10

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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.