Home / 691,123.45-1,036,685.18-292,214.65

Finding the Fourth Proportional to 691,123.45, 1,036,685.18 and 292,214.65

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Solution

The fourth proportional to 691,123.45, 1,036,685.18 and 292,214.65 is: 438,321.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,123.45 : 1,036,685.18 = 292,214.65 : x
  2. Step 2: Convert to fraction form
    691,123.45/1,036,685.18 = 292,214.65/x
  3. Step 3: Cross multiply
    691,123.45x = 1,036,685.18 × 292,214.65
  4. Step 4: Simplify right side
    691,123.45x = 302,934,597,033.89
  5. Step 5: Solve for x
    x = 302,934,597,033.89/691,123.45
  6. Step 6: Final answer
    x = 438,321.98

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Similar ratio
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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.