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Finding the Fourth Proportional to 465,752.46, 642,806.45 and 261,820.17

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Solution

The fourth proportional to 465,752.46, 642,806.45 and 261,820.17 is: 361,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,752.46 : 642,806.45 = 261,820.17 : x
  2. Step 2: Convert to fraction form
    465,752.46/642,806.45 = 261,820.17/x
  3. Step 3: Cross multiply
    465,752.46x = 642,806.45 × 261,820.17
  4. Step 4: Simplify right side
    465,752.46x = 168,299,697,572.08
  5. Step 5: Solve for x
    x = 168,299,697,572.08/465,752.46
  6. Step 6: Final answer
    x = 361,350.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.