Home / 439,624.10-659,436.15-436,999.70

Finding the Fourth Proportional to 439,624.10, 659,436.15 and 436,999.70

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Solution

The fourth proportional to 439,624.10, 659,436.15 and 436,999.70 is: 655,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,624.10 : 659,436.15 = 436,999.70 : x
  2. Step 2: Convert to fraction form
    439,624.10/659,436.15 = 436,999.70/x
  3. Step 3: Cross multiply
    439,624.10x = 659,436.15 × 436,999.70
  4. Step 4: Simplify right side
    439,624.10x = 288,173,399,719.16
  5. Step 5: Solve for x
    x = 288,173,399,719.16/439,624.10
  6. Step 6: Final answer
    x = 655,499.55

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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.