Home / 646,905.60-970,358.40-488,275.20

Finding the Fourth Proportional to 646,905.60, 970,358.40 and 488,275.20

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Solution

The fourth proportional to 646,905.60, 970,358.40 and 488,275.20 is: 732,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,905.60 : 970,358.40 = 488,275.20 : x
  2. Step 2: Convert to fraction form
    646,905.60/970,358.40 = 488,275.20/x
  3. Step 3: Cross multiply
    646,905.60x = 970,358.40 × 488,275.20
  4. Step 4: Simplify right side
    646,905.60x = 473,801,941,831.68
  5. Step 5: Solve for x
    x = 473,801,941,831.68/646,905.60
  6. Step 6: Final answer
    x = 732,412.80

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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.