Home / 752,641.88-1,038,628.58-408,478.44

Finding the Fourth Proportional to 752,641.88, 1,038,628.58 and 408,478.44

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Solution

The fourth proportional to 752,641.88, 1,038,628.58 and 408,478.44 is: 563,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,641.88 : 1,038,628.58 = 408,478.44 : x
  2. Step 2: Convert to fraction form
    752,641.88/1,038,628.58 = 408,478.44/x
  3. Step 3: Cross multiply
    752,641.88x = 1,038,628.58 × 408,478.44
  4. Step 4: Simplify right side
    752,641.88x = 424,257,383,950.28
  5. Step 5: Solve for x
    x = 424,257,383,950.28/752,641.88
  6. Step 6: Final answer
    x = 563,690.91

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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.