Home / 918,729.60-1,377,529.92-357,109.44

Finding the Fourth Proportional to 918,729.60, 1,377,529.92 and 357,109.44

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Solution

The fourth proportional to 918,729.60, 1,377,529.92 and 357,109.44 is: 535,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,729.60 : 1,377,529.92 = 357,109.44 : x
  2. Step 2: Convert to fraction form
    918,729.60/1,377,529.92 = 357,109.44/x
  3. Step 3: Cross multiply
    918,729.60x = 1,377,529.92 × 357,109.44
  4. Step 4: Simplify right side
    918,729.60x = 491,928,938,314.45
  5. Step 5: Solve for x
    x = 491,928,938,314.45/918,729.60
  6. Step 6: Final answer
    x = 535,444.75

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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.