Home / 779,937.80-1,170,076.80-443,139.80

Finding the Fourth Proportional to 779,937.80, 1,170,076.80 and 443,139.80

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Solution

The fourth proportional to 779,937.80, 1,170,076.80 and 443,139.80 is: 664,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,937.80 : 1,170,076.80 = 443,139.80 : x
  2. Step 2: Convert to fraction form
    779,937.80/1,170,076.80 = 443,139.80/x
  3. Step 3: Cross multiply
    779,937.80x = 1,170,076.80 × 443,139.80
  4. Step 4: Simplify right side
    779,937.80x = 518,507,599,136.64
  5. Step 5: Solve for x
    x = 518,507,599,136.64/779,937.80
  6. Step 6: Final answer
    x = 664,806.35

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1.5x scale

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.