Home / 458,524.20-686,474.10-406,036.20

Finding the Fourth Proportional to 458,524.20, 686,474.10 and 406,036.20

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Solution

The fourth proportional to 458,524.20, 686,474.10 and 406,036.20 is: 607,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,524.20 : 686,474.10 = 406,036.20 : x
  2. Step 2: Convert to fraction form
    458,524.20/686,474.10 = 406,036.20/x
  3. Step 3: Cross multiply
    458,524.20x = 686,474.10 × 406,036.20
  4. Step 4: Simplify right side
    458,524.20x = 278,733,334,962.42
  5. Step 5: Solve for x
    x = 278,733,334,962.42/458,524.20
  6. Step 6: Final answer
    x = 607,892.31

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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.