Home / 918,003.60-1,377,005.40-912,754.80

Finding the Fourth Proportional to 918,003.60, 1,377,005.40 and 912,754.80

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Solution

The fourth proportional to 918,003.60, 1,377,005.40 and 912,754.80 is: 1,369,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,003.60 : 1,377,005.40 = 912,754.80 : x
  2. Step 2: Convert to fraction form
    918,003.60/1,377,005.40 = 912,754.80/x
  3. Step 3: Cross multiply
    918,003.60x = 1,377,005.40 × 912,754.80
  4. Step 4: Simplify right side
    918,003.60x = 1,256,868,288,475.92
  5. Step 5: Solve for x
    x = 1,256,868,288,475.92/918,003.60
  6. Step 6: Final answer
    x = 1,369,132.20

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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.