Home / 745,581.89-1,028,932.14-423,321.98

Finding the Fourth Proportional to 745,581.89, 1,028,932.14 and 423,321.98

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Solution

The fourth proportional to 745,581.89, 1,028,932.14 and 423,321.98 is: 584,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,581.89 : 1,028,932.14 = 423,321.98 : x
  2. Step 2: Convert to fraction form
    745,581.89/1,028,932.14 = 423,321.98/x
  3. Step 3: Cross multiply
    745,581.89x = 1,028,932.14 × 423,321.98
  4. Step 4: Simplify right side
    745,581.89x = 435,569,583,529.17
  5. Step 5: Solve for x
    x = 435,569,583,529.17/745,581.89
  6. Step 6: Final answer
    x = 584,200.86

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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.