Home / 918,209.70-1,377,314.55-619,611.30

Finding the Fourth Proportional to 918,209.70, 1,377,314.55 and 619,611.30

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Solution

The fourth proportional to 918,209.70, 1,377,314.55 and 619,611.30 is: 929,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,209.70 : 1,377,314.55 = 619,611.30 : x
  2. Step 2: Convert to fraction form
    918,209.70/1,377,314.55 = 619,611.30/x
  3. Step 3: Cross multiply
    918,209.70x = 1,377,314.55 × 619,611.30
  4. Step 4: Simplify right side
    918,209.70x = 853,399,658,834.42
  5. Step 5: Solve for x
    x = 853,399,658,834.42/918,209.70
  6. Step 6: Final answer
    x = 929,416.95

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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.