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Finding the Fourth Proportional to 904,377, 1,248,045.12 and 565,042.08

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Solution

The fourth proportional to 904,377, 1,248,045.12 and 565,042.08 is: 779,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,377 : 1,248,045.12 = 565,042.08 : x
  2. Step 2: Convert to fraction form
    904,377/1,248,045.12 = 565,042.08/x
  3. Step 3: Cross multiply
    904,377x = 1,248,045.12 × 565,042.08
  4. Step 4: Simplify right side
    904,377x = 705,198,010,538.65
  5. Step 5: Solve for x
    x = 705,198,010,538.65/904,377
  6. Step 6: Final answer
    x = 779,761.11

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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.