Home / 659,822.10-989,733.15-423,626.10

Finding the Fourth Proportional to 659,822.10, 989,733.15 and 423,626.10

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Solution

The fourth proportional to 659,822.10, 989,733.15 and 423,626.10 is: 635,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,822.10 : 989,733.15 = 423,626.10 : x
  2. Step 2: Convert to fraction form
    659,822.10/989,733.15 = 423,626.10/x
  3. Step 3: Cross multiply
    659,822.10x = 989,733.15 × 423,626.10
  4. Step 4: Simplify right side
    659,822.10x = 419,276,794,375.22
  5. Step 5: Solve for x
    x = 419,276,794,375.22/659,822.10
  6. Step 6: Final answer
    x = 635,439.15

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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.