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Finding the Fourth Proportional to 630,126.92, 869,565.96 and 343,646.36

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Solution

The fourth proportional to 630,126.92, 869,565.96 and 343,646.36 is: 474,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,126.92 : 869,565.96 = 343,646.36 : x
  2. Step 2: Convert to fraction form
    630,126.92/869,565.96 = 343,646.36/x
  3. Step 3: Cross multiply
    630,126.92x = 869,565.96 × 343,646.36
  4. Step 4: Simplify right side
    630,126.92x = 298,823,176,933.91
  5. Step 5: Solve for x
    x = 298,823,176,933.91/630,126.92
  6. Step 6: Final answer
    x = 474,226.97

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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.