Home / 432,821.90-649,232.85-426,601.10

Finding the Fourth Proportional to 432,821.90, 649,232.85 and 426,601.10

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Solution

The fourth proportional to 432,821.90, 649,232.85 and 426,601.10 is: 639,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,821.90 : 649,232.85 = 426,601.10 : x
  2. Step 2: Convert to fraction form
    432,821.90/649,232.85 = 426,601.10/x
  3. Step 3: Cross multiply
    432,821.90x = 649,232.85 × 426,601.10
  4. Step 4: Simplify right side
    432,821.90x = 276,963,447,966.14
  5. Step 5: Solve for x
    x = 276,963,447,966.14/432,821.90
  6. Step 6: Final answer
    x = 639,901.65

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Similar ratio
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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.