Home / 752,740.79-1,038,783.38-408,576.98

Finding the Fourth Proportional to 752,740.79, 1,038,783.38 and 408,576.98

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Solution

The fourth proportional to 752,740.79, 1,038,783.38 and 408,576.98 is: 563,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,740.79 : 1,038,783.38 = 408,576.98 : x
  2. Step 2: Convert to fraction form
    752,740.79/1,038,783.38 = 408,576.98/x
  3. Step 3: Cross multiply
    752,740.79x = 1,038,783.38 × 408,576.98
  4. Step 4: Simplify right side
    752,740.79x = 424,422,974,231.71
  5. Step 5: Solve for x
    x = 424,422,974,231.71/752,740.79
  6. Step 6: Final answer
    x = 563,836.82

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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.