Home / 691,124.70-1,036,687.05-292,215.90

Finding the Fourth Proportional to 691,124.70, 1,036,687.05 and 292,215.90

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Solution

The fourth proportional to 691,124.70, 1,036,687.05 and 292,215.90 is: 438,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,124.70 : 1,036,687.05 = 292,215.90 : x
  2. Step 2: Convert to fraction form
    691,124.70/1,036,687.05 = 292,215.90/x
  3. Step 3: Cross multiply
    691,124.70x = 1,036,687.05 × 292,215.90
  4. Step 4: Simplify right side
    691,124.70x = 302,936,439,334.10
  5. Step 5: Solve for x
    x = 302,936,439,334.10/691,124.70
  6. Step 6: Final answer
    x = 438,323.85

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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.