Home / 947,451.30-1,307,486.07-517,731.45

Finding the Fourth Proportional to 947,451.30, 1,307,486.07 and 517,731.45

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Solution

The fourth proportional to 947,451.30, 1,307,486.07 and 517,731.45 is: 714,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,451.30 : 1,307,486.07 = 517,731.45 : x
  2. Step 2: Convert to fraction form
    947,451.30/1,307,486.07 = 517,731.45/x
  3. Step 3: Cross multiply
    947,451.30x = 1,307,486.07 × 517,731.45
  4. Step 4: Simplify right side
    947,451.30x = 676,926,658,875.90
  5. Step 5: Solve for x
    x = 676,926,658,875.90/947,451.30
  6. Step 6: Final answer
    x = 714,471.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.