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Finding the Fourth Proportional to 630,115.80, 869,305.76 and 364,726.86

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Solution

The fourth proportional to 630,115.80, 869,305.76 and 364,726.86 is: 503,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,115.80 : 869,305.76 = 364,726.86 : x
  2. Step 2: Convert to fraction form
    630,115.80/869,305.76 = 364,726.86/x
  3. Step 3: Cross multiply
    630,115.80x = 869,305.76 × 364,726.86
  4. Step 4: Simplify right side
    630,115.80x = 317,059,160,224.71
  5. Step 5: Solve for x
    x = 317,059,160,224.71/630,115.80
  6. Step 6: Final answer
    x = 503,176.02

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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.