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Finding the Fourth Proportional to 534,140.80, 802,960.80 and 377,454.40

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Solution

The fourth proportional to 534,140.80, 802,960.80 and 377,454.40 is: 567,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,140.80 : 802,960.80 = 377,454.40 : x
  2. Step 2: Convert to fraction form
    534,140.80/802,960.80 = 377,454.40/x
  3. Step 3: Cross multiply
    534,140.80x = 802,960.80 × 377,454.40
  4. Step 4: Simplify right side
    534,140.80x = 303,081,086,987.52
  5. Step 5: Solve for x
    x = 303,081,086,987.52/534,140.80
  6. Step 6: Final answer
    x = 567,417.97

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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.