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Finding the Fourth Proportional to 638,766.44, 956,156.76 and 470,476.80

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Solution

The fourth proportional to 638,766.44, 956,156.76 and 470,476.80 is: 704,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,766.44 : 956,156.76 = 470,476.80 : x
  2. Step 2: Convert to fraction form
    638,766.44/956,156.76 = 470,476.80/x
  3. Step 3: Cross multiply
    638,766.44x = 956,156.76 × 470,476.80
  4. Step 4: Simplify right side
    638,766.44x = 449,849,572,743.17
  5. Step 5: Solve for x
    x = 449,849,572,743.17/638,766.44
  6. Step 6: Final answer
    x = 704,247.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.