Home / 631,531.40-947,297.10-579,921.80

Finding the Fourth Proportional to 631,531.40, 947,297.10 and 579,921.80

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Solution

The fourth proportional to 631,531.40, 947,297.10 and 579,921.80 is: 869,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,531.40 : 947,297.10 = 579,921.80 : x
  2. Step 2: Convert to fraction form
    631,531.40/947,297.10 = 579,921.80/x
  3. Step 3: Cross multiply
    631,531.40x = 947,297.10 × 579,921.80
  4. Step 4: Simplify right side
    631,531.40x = 549,358,239,366.78
  5. Step 5: Solve for x
    x = 549,358,239,366.78/631,531.40
  6. Step 6: Final answer
    x = 869,882.70

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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.