Home / 752,702.13-1,038,736.62-408,540.87

Finding the Fourth Proportional to 752,702.13, 1,038,736.62 and 408,540.87

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Solution

The fourth proportional to 752,702.13, 1,038,736.62 and 408,540.87 is: 563,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,702.13 : 1,038,736.62 = 408,540.87 : x
  2. Step 2: Convert to fraction form
    752,702.13/1,038,736.62 = 408,540.87/x
  3. Step 3: Cross multiply
    752,702.13x = 1,038,736.62 × 408,540.87
  4. Step 4: Simplify right side
    752,702.13x = 424,366,362,435.66
  5. Step 5: Solve for x
    x = 424,366,362,435.66/752,702.13
  6. Step 6: Final answer
    x = 563,790.57

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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.