Home / 745,784.07-1,028,742.43-527,747.46

Finding the Fourth Proportional to 745,784.07, 1,028,742.43 and 527,747.46

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Solution

The fourth proportional to 745,784.07, 1,028,742.43 and 527,747.46 is: 727,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,784.07 : 1,028,742.43 = 527,747.46 : x
  2. Step 2: Convert to fraction form
    745,784.07/1,028,742.43 = 527,747.46/x
  3. Step 3: Cross multiply
    745,784.07x = 1,028,742.43 × 527,747.46
  4. Step 4: Simplify right side
    745,784.07x = 542,916,206,025.78
  5. Step 5: Solve for x
    x = 542,916,206,025.78/745,784.07
  6. Step 6: Final answer
    x = 727,980.43

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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.