Home / 1,255,321.20-1,882,981.80-413,763.60

Finding the Fourth Proportional to 1,255,321.20, 1,882,981.80 and 413,763.60

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Solution

The fourth proportional to 1,255,321.20, 1,882,981.80 and 413,763.60 is: 620,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,321.20 : 1,882,981.80 = 413,763.60 : x
  2. Step 2: Convert to fraction form
    1,255,321.20/1,882,981.80 = 413,763.60/x
  3. Step 3: Cross multiply
    1,255,321.20x = 1,882,981.80 × 413,763.60
  4. Step 4: Simplify right side
    1,255,321.20x = 779,109,328,302.48
  5. Step 5: Solve for x
    x = 779,109,328,302.48/1,255,321.20
  6. Step 6: Final answer
    x = 620,645.40

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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.