Home / 918,611-1,377,731.38-576,901.80

Finding the Fourth Proportional to 918,611, 1,377,731.38 and 576,901.80

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Solution

The fourth proportional to 918,611, 1,377,731.38 and 576,901.80 is: 865,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,611 : 1,377,731.38 = 576,901.80 : x
  2. Step 2: Convert to fraction form
    918,611/1,377,731.38 = 576,901.80/x
  3. Step 3: Cross multiply
    918,611x = 1,377,731.38 × 576,901.80
  4. Step 4: Simplify right side
    918,611x = 794,815,713,038.48
  5. Step 5: Solve for x
    x = 794,815,713,038.48/918,611
  6. Step 6: Final answer
    x = 865,236.44

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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.