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Finding the Fourth Proportional to 587,125.80, 880,688.70 and 384,172.20

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Solution

The fourth proportional to 587,125.80, 880,688.70 and 384,172.20 is: 576,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,125.80 : 880,688.70 = 384,172.20 : x
  2. Step 2: Convert to fraction form
    587,125.80/880,688.70 = 384,172.20/x
  3. Step 3: Cross multiply
    587,125.80x = 880,688.70 × 384,172.20
  4. Step 4: Simplify right side
    587,125.80x = 338,336,115,394.14
  5. Step 5: Solve for x
    x = 338,336,115,394.14/587,125.80
  6. Step 6: Final answer
    x = 576,258.30

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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.