Home / 439,815.40-659,723.10-334,839.40

Finding the Fourth Proportional to 439,815.40, 659,723.10 and 334,839.40

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Solution

The fourth proportional to 439,815.40, 659,723.10 and 334,839.40 is: 502,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,815.40 : 659,723.10 = 334,839.40 : x
  2. Step 2: Convert to fraction form
    439,815.40/659,723.10 = 334,839.40/x
  3. Step 3: Cross multiply
    439,815.40x = 659,723.10 × 334,839.40
  4. Step 4: Simplify right side
    439,815.40x = 220,901,286,970.14
  5. Step 5: Solve for x
    x = 220,901,286,970.14/439,815.40
  6. Step 6: Final answer
    x = 502,259.10

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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.