Home / 904,942-1,248,930.12-522,971.92

Finding the Fourth Proportional to 904,942, 1,248,930.12 and 522,971.92

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Solution

The fourth proportional to 904,942, 1,248,930.12 and 522,971.92 is: 721,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,942 : 1,248,930.12 = 522,971.92 : x
  2. Step 2: Convert to fraction form
    904,942/1,248,930.12 = 522,971.92/x
  3. Step 3: Cross multiply
    904,942x = 1,248,930.12 × 522,971.92
  4. Step 4: Simplify right side
    904,942x = 653,155,382,802.23
  5. Step 5: Solve for x
    x = 653,155,382,802.23/904,942
  6. Step 6: Final answer
    x = 721,764.91

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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.