Home / 749,108.60-1,123,695.70-216,683.45

Finding the Fourth Proportional to 749,108.60, 1,123,695.70 and 216,683.45

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Solution

The fourth proportional to 749,108.60, 1,123,695.70 and 216,683.45 is: 325,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,108.60 : 1,123,695.70 = 216,683.45 : x
  2. Step 2: Convert to fraction form
    749,108.60/1,123,695.70 = 216,683.45/x
  3. Step 3: Cross multiply
    749,108.60x = 1,123,695.70 × 216,683.45
  4. Step 4: Simplify right side
    749,108.60x = 243,486,261,026.17
  5. Step 5: Solve for x
    x = 243,486,261,026.17/749,108.60
  6. Step 6: Final answer
    x = 325,034.66

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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.