Home / 752,521.10-1,038,479.13-450,715.10

Finding the Fourth Proportional to 752,521.10, 1,038,479.13 and 450,715.10

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Solution

The fourth proportional to 752,521.10, 1,038,479.13 and 450,715.10 is: 621,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,521.10 : 1,038,479.13 = 450,715.10 : x
  2. Step 2: Convert to fraction form
    752,521.10/1,038,479.13 = 450,715.10/x
  3. Step 3: Cross multiply
    752,521.10x = 1,038,479.13 × 450,715.10
  4. Step 4: Simplify right side
    752,521.10x = 468,058,217,479.89
  5. Step 5: Solve for x
    x = 468,058,217,479.89/752,521.10
  6. Step 6: Final answer
    x = 621,986.84

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Double scale
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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.