Home / 879,401.20-1,319,101.80-784,922.80

Finding the Fourth Proportional to 879,401.20, 1,319,101.80 and 784,922.80

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Solution

The fourth proportional to 879,401.20, 1,319,101.80 and 784,922.80 is: 1,177,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,401.20 : 1,319,101.80 = 784,922.80 : x
  2. Step 2: Convert to fraction form
    879,401.20/1,319,101.80 = 784,922.80/x
  3. Step 3: Cross multiply
    879,401.20x = 1,319,101.80 × 784,922.80
  4. Step 4: Simplify right side
    879,401.20x = 1,035,393,078,341.04
  5. Step 5: Solve for x
    x = 1,035,393,078,341.04/879,401.20
  6. Step 6: Final answer
    x = 1,177,384.20

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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.