Home / 1,019,406.88-1,528,100.28-478,695.23

Finding the Fourth Proportional to 1,019,406.88, 1,528,100.28 and 478,695.23

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Solution

The fourth proportional to 1,019,406.88, 1,528,100.28 and 478,695.23 is: 717,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,406.88 : 1,528,100.28 = 478,695.23 : x
  2. Step 2: Convert to fraction form
    1,019,406.88/1,528,100.28 = 478,695.23/x
  3. Step 3: Cross multiply
    1,019,406.88x = 1,528,100.28 × 478,695.23
  4. Step 4: Simplify right side
    1,019,406.88x = 731,494,310,521.54
  5. Step 5: Solve for x
    x = 731,494,310,521.54/1,019,406.88
  6. Step 6: Final answer
    x = 717,568.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.