Home / 721,327.32-995,468.04-434,939.76

Finding the Fourth Proportional to 721,327.32, 995,468.04 and 434,939.76

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Solution

The fourth proportional to 721,327.32, 995,468.04 and 434,939.76 is: 600,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,327.32 : 995,468.04 = 434,939.76 : x
  2. Step 2: Convert to fraction form
    721,327.32/995,468.04 = 434,939.76/x
  3. Step 3: Cross multiply
    721,327.32x = 995,468.04 × 434,939.76
  4. Step 4: Simplify right side
    721,327.32x = 432,968,630,405.27
  5. Step 5: Solve for x
    x = 432,968,630,405.27/721,327.32
  6. Step 6: Final answer
    x = 600,238.78

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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.