Home / 904,702.25-1,248,503.45-491,238.80

Finding the Fourth Proportional to 904,702.25, 1,248,503.45 and 491,238.80

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Solution

The fourth proportional to 904,702.25, 1,248,503.45 and 491,238.80 is: 677,917.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,702.25 : 1,248,503.45 = 491,238.80 : x
  2. Step 2: Convert to fraction form
    904,702.25/1,248,503.45 = 491,238.80/x
  3. Step 3: Cross multiply
    904,702.25x = 1,248,503.45 × 491,238.80
  4. Step 4: Simplify right side
    904,702.25x = 613,313,332,557.04
  5. Step 5: Solve for x
    x = 613,313,332,557.04/904,702.25
  6. Step 6: Final answer
    x = 677,917.33

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Double scale
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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.