Home / 749,356.50-1,034,112.78-409,825.56

Finding the Fourth Proportional to 749,356.50, 1,034,112.78 and 409,825.56

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Solution

The fourth proportional to 749,356.50, 1,034,112.78 and 409,825.56 is: 565,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,356.50 : 1,034,112.78 = 409,825.56 : x
  2. Step 2: Convert to fraction form
    749,356.50/1,034,112.78 = 409,825.56/x
  3. Step 3: Cross multiply
    749,356.50x = 1,034,112.78 × 409,825.56
  4. Step 4: Simplify right side
    749,356.50x = 423,805,849,166.66
  5. Step 5: Solve for x
    x = 423,805,849,166.66/749,356.50
  6. Step 6: Final answer
    x = 565,559.72

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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.