Home / 758,854.12-1,047,177.56-419,300.50

Finding the Fourth Proportional to 758,854.12, 1,047,177.56 and 419,300.50

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Solution

The fourth proportional to 758,854.12, 1,047,177.56 and 419,300.50 is: 578,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,854.12 : 1,047,177.56 = 419,300.50 : x
  2. Step 2: Convert to fraction form
    758,854.12/1,047,177.56 = 419,300.50/x
  3. Step 3: Cross multiply
    758,854.12x = 1,047,177.56 × 419,300.50
  4. Step 4: Simplify right side
    758,854.12x = 439,082,074,496.78
  5. Step 5: Solve for x
    x = 439,082,074,496.78/758,854.12
  6. Step 6: Final answer
    x = 578,611.97

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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.