Home / 691,870.20-1,037,805.30-424,764.60

Finding the Fourth Proportional to 691,870.20, 1,037,805.30 and 424,764.60

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Solution

The fourth proportional to 691,870.20, 1,037,805.30 and 424,764.60 is: 637,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,870.20 : 1,037,805.30 = 424,764.60 : x
  2. Step 2: Convert to fraction form
    691,870.20/1,037,805.30 = 424,764.60/x
  3. Step 3: Cross multiply
    691,870.20x = 1,037,805.30 × 424,764.60
  4. Step 4: Simplify right side
    691,870.20x = 440,822,953,132.38
  5. Step 5: Solve for x
    x = 440,822,953,132.38/691,870.20
  6. Step 6: Final answer
    x = 637,146.90

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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.