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Finding the Fourth Proportional to 498,423, 687,584.22 and 326,265.06

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Solution

The fourth proportional to 498,423, 687,584.22 and 326,265.06 is: 450,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,423 : 687,584.22 = 326,265.06 : x
  2. Step 2: Convert to fraction form
    498,423/687,584.22 = 326,265.06/x
  3. Step 3: Cross multiply
    498,423x = 687,584.22 × 326,265.06
  4. Step 4: Simplify right side
    498,423x = 224,334,706,793.35
  5. Step 5: Solve for x
    x = 224,334,706,793.35/498,423
  6. Step 6: Final answer
    x = 450,088.99

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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.