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Finding the Fourth Proportional to 659,798.96, 910,934.72 and 453,422.88

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Solution

The fourth proportional to 659,798.96, 910,934.72 and 453,422.88 is: 626,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,798.96 : 910,934.72 = 453,422.88 : x
  2. Step 2: Convert to fraction form
    659,798.96/910,934.72 = 453,422.88/x
  3. Step 3: Cross multiply
    659,798.96x = 910,934.72 × 453,422.88
  4. Step 4: Simplify right side
    659,798.96x = 413,038,644,234.39
  5. Step 5: Solve for x
    x = 413,038,644,234.39/659,798.96
  6. Step 6: Final answer
    x = 626,006.81

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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.