Home / 749,326.55-1,124,000.49-243,890.20

Finding the Fourth Proportional to 749,326.55, 1,124,000.49 and 243,890.20

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Solution

The fourth proportional to 749,326.55, 1,124,000.49 and 243,890.20 is: 365,838.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,326.55 : 1,124,000.49 = 243,890.20 : x
  2. Step 2: Convert to fraction form
    749,326.55/1,124,000.49 = 243,890.20/x
  3. Step 3: Cross multiply
    749,326.55x = 1,124,000.49 × 243,890.20
  4. Step 4: Simplify right side
    749,326.55x = 274,132,704,306.20
  5. Step 5: Solve for x
    x = 274,132,704,306.20/749,326.55
  6. Step 6: Final answer
    x = 365,838.77

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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.