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Finding the Fourth Proportional to 584,920.80, 877,381.20 and 494,719.20

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Solution

The fourth proportional to 584,920.80, 877,381.20 and 494,719.20 is: 742,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,920.80 : 877,381.20 = 494,719.20 : x
  2. Step 2: Convert to fraction form
    584,920.80/877,381.20 = 494,719.20/x
  3. Step 3: Cross multiply
    584,920.80x = 877,381.20 × 494,719.20
  4. Step 4: Simplify right side
    584,920.80x = 434,057,325,359.04
  5. Step 5: Solve for x
    x = 434,057,325,359.04/584,920.80
  6. Step 6: Final answer
    x = 742,078.80

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Similar ratio
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1.5x scale

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.