Home / 1,192,002.10-1,788,003.15-688,117.30

Finding the Fourth Proportional to 1,192,002.10, 1,788,003.15 and 688,117.30

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Solution

The fourth proportional to 1,192,002.10, 1,788,003.15 and 688,117.30 is: 1,032,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,002.10 : 1,788,003.15 = 688,117.30 : x
  2. Step 2: Convert to fraction form
    1,192,002.10/1,788,003.15 = 688,117.30/x
  3. Step 3: Cross multiply
    1,192,002.10x = 1,788,003.15 × 688,117.30
  4. Step 4: Simplify right side
    1,192,002.10x = 1,230,355,899,969.50
  5. Step 5: Solve for x
    x = 1,230,355,899,969.50/1,192,002.10
  6. Step 6: Final answer
    x = 1,032,175.95

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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.