Home / 749,056.80-1,123,402.95-216,522.30

Finding the Fourth Proportional to 749,056.80, 1,123,402.95 and 216,522.30

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Solution

The fourth proportional to 749,056.80, 1,123,402.95 and 216,522.30 is: 324,730.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,056.80 : 1,123,402.95 = 216,522.30 : x
  2. Step 2: Convert to fraction form
    749,056.80/1,123,402.95 = 216,522.30/x
  3. Step 3: Cross multiply
    749,056.80x = 1,123,402.95 × 216,522.30
  4. Step 4: Simplify right side
    749,056.80x = 243,241,790,560.79
  5. Step 5: Solve for x
    x = 243,241,790,560.79/749,056.80
  6. Step 6: Final answer
    x = 324,730.77

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Half scale
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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.