Home / 752,399.53-1,038,309.91-408,235.36

Finding the Fourth Proportional to 752,399.53, 1,038,309.91 and 408,235.36

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Solution

The fourth proportional to 752,399.53, 1,038,309.91 and 408,235.36 is: 563,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,399.53 : 1,038,309.91 = 408,235.36 : x
  2. Step 2: Convert to fraction form
    752,399.53/1,038,309.91 = 408,235.36/x
  3. Step 3: Cross multiply
    752,399.53x = 1,038,309.91 × 408,235.36
  4. Step 4: Simplify right side
    752,399.53x = 423,874,819,900.42
  5. Step 5: Solve for x
    x = 423,874,819,900.42/752,399.53
  6. Step 6: Final answer
    x = 563,364.01

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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.