Home / 752,429.23-1,038,382.29-412,909.63

Finding the Fourth Proportional to 752,429.23, 1,038,382.29 and 412,909.63

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Solution

The fourth proportional to 752,429.23, 1,038,382.29 and 412,909.63 is: 569,831.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,429.23 : 1,038,382.29 = 412,909.63 : x
  2. Step 2: Convert to fraction form
    752,429.23/1,038,382.29 = 412,909.63/x
  3. Step 3: Cross multiply
    752,429.23x = 1,038,382.29 × 412,909.63
  4. Step 4: Simplify right side
    752,429.23x = 428,758,047,162.45
  5. Step 5: Solve for x
    x = 428,758,047,162.45/752,429.23
  6. Step 6: Final answer
    x = 569,831.73

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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.