Home / 820,813.06-1,132,400.28-476,590.24

Finding the Fourth Proportional to 820,813.06, 1,132,400.28 and 476,590.24

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Solution

The fourth proportional to 820,813.06, 1,132,400.28 and 476,590.24 is: 657,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,813.06 : 1,132,400.28 = 476,590.24 : x
  2. Step 2: Convert to fraction form
    820,813.06/1,132,400.28 = 476,590.24/x
  3. Step 3: Cross multiply
    820,813.06x = 1,132,400.28 × 476,590.24
  4. Step 4: Simplify right side
    820,813.06x = 539,690,921,221.27
  5. Step 5: Solve for x
    x = 539,690,921,221.27/820,813.06
  6. Step 6: Final answer
    x = 657,507.72

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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.