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Finding the Fourth Proportional to 576,640.59, 864,636.93 and 239,454.40

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Solution

The fourth proportional to 576,640.59, 864,636.93 and 239,454.40 is: 359,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,640.59 : 864,636.93 = 239,454.40 : x
  2. Step 2: Convert to fraction form
    576,640.59/864,636.93 = 239,454.40/x
  3. Step 3: Cross multiply
    576,640.59x = 864,636.93 × 239,454.40
  4. Step 4: Simplify right side
    576,640.59x = 207,041,117,290.99
  5. Step 5: Solve for x
    x = 207,041,117,290.99/576,640.59
  6. Step 6: Final answer
    x = 359,047.08

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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.