Home / 749,009.28-1,123,347.60-216,413.76

Finding the Fourth Proportional to 749,009.28, 1,123,347.60 and 216,413.76

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Solution

The fourth proportional to 749,009.28, 1,123,347.60 and 216,413.76 is: 324,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,009.28 : 1,123,347.60 = 216,413.76 : x
  2. Step 2: Convert to fraction form
    749,009.28/1,123,347.60 = 216,413.76/x
  3. Step 3: Cross multiply
    749,009.28x = 1,123,347.60 × 216,413.76
  4. Step 4: Simplify right side
    749,009.28x = 243,107,877,902.98
  5. Step 5: Solve for x
    x = 243,107,877,902.98/749,009.28
  6. Step 6: Final answer
    x = 324,572.58

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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.