Home / 1,118,519.48-1,543,065.90-755,811.20

Finding the Fourth Proportional to 1,118,519.48, 1,543,065.90 and 755,811.20

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Solution

The fourth proportional to 1,118,519.48, 1,543,065.90 and 755,811.20 is: 1,042,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,519.48 : 1,543,065.90 = 755,811.20 : x
  2. Step 2: Convert to fraction form
    1,118,519.48/1,543,065.90 = 755,811.20/x
  3. Step 3: Cross multiply
    1,118,519.48x = 1,543,065.90 × 755,811.20
  4. Step 4: Simplify right side
    1,118,519.48x = 1,166,266,490,581.45
  5. Step 5: Solve for x
    x = 1,166,266,490,581.45/1,118,519.48
  6. Step 6: Final answer
    x = 1,042,687.69

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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.