Home / 947,646.60-1,307,732.88-517,929.78

Finding the Fourth Proportional to 947,646.60, 1,307,732.88 and 517,929.78

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Solution

The fourth proportional to 947,646.60, 1,307,732.88 and 517,929.78 is: 714,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,646.60 : 1,307,732.88 = 517,929.78 : x
  2. Step 2: Convert to fraction form
    947,646.60/1,307,732.88 = 517,929.78/x
  3. Step 3: Cross multiply
    947,646.60x = 1,307,732.88 × 517,929.78
  4. Step 4: Simplify right side
    947,646.60x = 677,313,802,837.17
  5. Step 5: Solve for x
    x = 677,313,802,837.17/947,646.60
  6. Step 6: Final answer
    x = 714,732.48

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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.