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Finding the Fourth Proportional to 630,404.08, 869,953.50 and 358,472.02

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Solution

The fourth proportional to 630,404.08, 869,953.50 and 358,472.02 is: 494,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,404.08 : 869,953.50 = 358,472.02 : x
  2. Step 2: Convert to fraction form
    630,404.08/869,953.50 = 358,472.02/x
  3. Step 3: Cross multiply
    630,404.08x = 869,953.50 × 358,472.02
  4. Step 4: Simplify right side
    630,404.08x = 311,853,988,451.07
  5. Step 5: Solve for x
    x = 311,853,988,451.07/630,404.08
  6. Step 6: Final answer
    x = 494,689.04

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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.