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Finding the Fourth Proportional to 904,951.86, 1,248,843.84 and 497,063.28

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Solution

The fourth proportional to 904,951.86, 1,248,843.84 and 497,063.28 is: 685,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,951.86 : 1,248,843.84 = 497,063.28 : x
  2. Step 2: Convert to fraction form
    904,951.86/1,248,843.84 = 497,063.28/x
  3. Step 3: Cross multiply
    904,951.86x = 1,248,843.84 × 497,063.28
  4. Step 4: Simplify right side
    904,951.86x = 620,754,415,318.20
  5. Step 5: Solve for x
    x = 620,754,415,318.20/904,951.86
  6. Step 6: Final answer
    x = 685,952.97

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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.