Home / 762,039.20-1,143,058.80-384,125.60

Finding the Fourth Proportional to 762,039.20, 1,143,058.80 and 384,125.60

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Solution

The fourth proportional to 762,039.20, 1,143,058.80 and 384,125.60 is: 576,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,039.20 : 1,143,058.80 = 384,125.60 : x
  2. Step 2: Convert to fraction form
    762,039.20/1,143,058.80 = 384,125.60/x
  3. Step 3: Cross multiply
    762,039.20x = 1,143,058.80 × 384,125.60
  4. Step 4: Simplify right side
    762,039.20x = 439,078,147,385.28
  5. Step 5: Solve for x
    x = 439,078,147,385.28/762,039.20
  6. Step 6: Final answer
    x = 576,188.40

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Similar ratio
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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.