Home / 1,224,337.88-1,690,057.10-816,290.87

Finding the Fourth Proportional to 1,224,337.88, 1,690,057.10 and 816,290.87

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Solution

The fourth proportional to 1,224,337.88, 1,690,057.10 and 816,290.87 is: 1,126,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,337.88 : 1,690,057.10 = 816,290.87 : x
  2. Step 2: Convert to fraction form
    1,224,337.88/1,690,057.10 = 816,290.87/x
  3. Step 3: Cross multiply
    1,224,337.88x = 1,690,057.10 × 816,290.87
  4. Step 4: Simplify right side
    1,224,337.88x = 1,379,578,174,099.12
  5. Step 5: Solve for x
    x = 1,379,578,174,099.12/1,224,337.88
  6. Step 6: Final answer
    x = 1,126,795.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.