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Finding the Fourth Proportional to 717,524.64, 989,813.52 and 462,471.84

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Solution

The fourth proportional to 717,524.64, 989,813.52 and 462,471.84 is: 637,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,524.64 : 989,813.52 = 462,471.84 : x
  2. Step 2: Convert to fraction form
    717,524.64/989,813.52 = 462,471.84/x
  3. Step 3: Cross multiply
    717,524.64x = 989,813.52 × 462,471.84
  4. Step 4: Simplify right side
    717,524.64x = 457,760,879,851.28
  5. Step 5: Solve for x
    x = 457,760,879,851.28/717,524.64
  6. Step 6: Final answer
    x = 637,972.35

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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.