Home / 918,138.80-1,377,208.20-740,991.80

Finding the Fourth Proportional to 918,138.80, 1,377,208.20 and 740,991.80

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Solution

The fourth proportional to 918,138.80, 1,377,208.20 and 740,991.80 is: 1,111,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,138.80 : 1,377,208.20 = 740,991.80 : x
  2. Step 2: Convert to fraction form
    918,138.80/1,377,208.20 = 740,991.80/x
  3. Step 3: Cross multiply
    918,138.80x = 1,377,208.20 × 740,991.80
  4. Step 4: Simplify right side
    918,138.80x = 1,020,499,983,092.76
  5. Step 5: Solve for x
    x = 1,020,499,983,092.76/918,138.80
  6. Step 6: Final answer
    x = 1,111,487.70

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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.