Home / 691,123.70-1,036,685.55-292,214.90

Finding the Fourth Proportional to 691,123.70, 1,036,685.55 and 292,214.90

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Solution

The fourth proportional to 691,123.70, 1,036,685.55 and 292,214.90 is: 438,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,123.70 : 1,036,685.55 = 292,214.90 : x
  2. Step 2: Convert to fraction form
    691,123.70/1,036,685.55 = 292,214.90/x
  3. Step 3: Cross multiply
    691,123.70x = 1,036,685.55 × 292,214.90
  4. Step 4: Simplify right side
    691,123.70x = 302,934,964,324.70
  5. Step 5: Solve for x
    x = 302,934,964,324.70/691,123.70
  6. Step 6: Final answer
    x = 438,322.35

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Double scale
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Similar ratio
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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.