Home / 1,198,045-1,653,114.18-688,652.20

Finding the Fourth Proportional to 1,198,045, 1,653,114.18 and 688,652.20

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Solution

The fourth proportional to 1,198,045, 1,653,114.18 and 688,652.20 is: 950,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,045 : 1,653,114.18 = 688,652.20 : x
  2. Step 2: Convert to fraction form
    1,198,045/1,653,114.18 = 688,652.20/x
  3. Step 3: Cross multiply
    1,198,045x = 1,653,114.18 × 688,652.20
  4. Step 4: Simplify right side
    1,198,045x = 1,138,420,716,908.20
  5. Step 5: Solve for x
    x = 1,138,420,716,908.20/1,198,045
  6. Step 6: Final answer
    x = 950,232.02

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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.