Home / 745,045.80-1,028,185.14-527,643.42

Finding the Fourth Proportional to 745,045.80, 1,028,185.14 and 527,643.42

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Solution

The fourth proportional to 745,045.80, 1,028,185.14 and 527,643.42 is: 728,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,045.80 : 1,028,185.14 = 527,643.42 : x
  2. Step 2: Convert to fraction form
    745,045.80/1,028,185.14 = 527,643.42/x
  3. Step 3: Cross multiply
    745,045.80x = 1,028,185.14 × 527,643.42
  4. Step 4: Simplify right side
    745,045.80x = 542,515,123,662.78
  5. Step 5: Solve for x
    x = 542,515,123,662.78/745,045.80
  6. Step 6: Final answer
    x = 728,163.45

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1.5x scale

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.