Home / 720,454.75-1,080,522.89-208,008.57

Finding the Fourth Proportional to 720,454.75, 1,080,522.89 and 208,008.57

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Solution

The fourth proportional to 720,454.75, 1,080,522.89 and 208,008.57 is: 311,966.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,454.75 : 1,080,522.89 = 208,008.57 : x
  2. Step 2: Convert to fraction form
    720,454.75/1,080,522.89 = 208,008.57/x
  3. Step 3: Cross multiply
    720,454.75x = 1,080,522.89 × 208,008.57
  4. Step 4: Simplify right side
    720,454.75x = 224,758,020,434.67
  5. Step 5: Solve for x
    x = 224,758,020,434.67/720,454.75
  6. Step 6: Final answer
    x = 311,966.88

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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.