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Finding the Fourth Proportional to 721,454.04, 995,795.64 and 415,565.64

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Solution

The fourth proportional to 721,454.04, 995,795.64 and 415,565.64 is: 573,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,454.04 : 995,795.64 = 415,565.64 : x
  2. Step 2: Convert to fraction form
    721,454.04/995,795.64 = 415,565.64/x
  3. Step 3: Cross multiply
    721,454.04x = 995,795.64 × 415,565.64
  4. Step 4: Simplify right side
    721,454.04x = 413,818,452,445.81
  5. Step 5: Solve for x
    x = 413,818,452,445.81/721,454.04
  6. Step 6: Final answer
    x = 573,589.49

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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.