Home / 752,547.28-1,038,509.82-408,374.54

Finding the Fourth Proportional to 752,547.28, 1,038,509.82 and 408,374.54

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Solution

The fourth proportional to 752,547.28, 1,038,509.82 and 408,374.54 is: 563,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,547.28 : 1,038,509.82 = 408,374.54 : x
  2. Step 2: Convert to fraction form
    752,547.28/1,038,509.82 = 408,374.54/x
  3. Step 3: Cross multiply
    752,547.28x = 1,038,509.82 × 408,374.54
  4. Step 4: Simplify right side
    752,547.28x = 424,100,970,027.98
  5. Step 5: Solve for x
    x = 424,100,970,027.98/752,547.28
  6. Step 6: Final answer
    x = 563,553.92

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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.