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Finding the Fourth Proportional to 664,246.52, 916,680.38 and 377,807.80

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Solution

The fourth proportional to 664,246.52, 916,680.38 and 377,807.80 is: 521,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,246.52 : 916,680.38 = 377,807.80 : x
  2. Step 2: Convert to fraction form
    664,246.52/916,680.38 = 377,807.80/x
  3. Step 3: Cross multiply
    664,246.52x = 916,680.38 × 377,807.80
  4. Step 4: Simplify right side
    664,246.52x = 346,328,997,670.96
  5. Step 5: Solve for x
    x = 346,328,997,670.96/664,246.52
  6. Step 6: Final answer
    x = 521,386.24

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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.