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Finding the Fourth Proportional to 639,752.45, 958,800.29 and 260,232.62

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Solution

The fourth proportional to 639,752.45, 958,800.29 and 260,232.62 is: 390,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,752.45 : 958,800.29 = 260,232.62 : x
  2. Step 2: Convert to fraction form
    639,752.45/958,800.29 = 260,232.62/x
  3. Step 3: Cross multiply
    639,752.45x = 958,800.29 × 260,232.62
  4. Step 4: Simplify right side
    639,752.45x = 249,511,105,428.30
  5. Step 5: Solve for x
    x = 249,511,105,428.30/639,752.45
  6. Step 6: Final answer
    x = 390,011.96

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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.