Home / 722,679.47-1,082,836.59-437,505.65

Finding the Fourth Proportional to 722,679.47, 1,082,836.59 and 437,505.65

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Solution

The fourth proportional to 722,679.47, 1,082,836.59 and 437,505.65 is: 655,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,679.47 : 1,082,836.59 = 437,505.65 : x
  2. Step 2: Convert to fraction form
    722,679.47/1,082,836.59 = 437,505.65/x
  3. Step 3: Cross multiply
    722,679.47x = 1,082,836.59 × 437,505.65
  4. Step 4: Simplify right side
    722,679.47x = 473,747,120,737.55
  5. Step 5: Solve for x
    x = 473,747,120,737.55/722,679.47
  6. Step 6: Final answer
    x = 655,542.52

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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.