Home / 439,939.60-657,941.10-369,080.80

Finding the Fourth Proportional to 439,939.60, 657,941.10 and 369,080.80

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Solution

The fourth proportional to 439,939.60, 657,941.10 and 369,080.80 is: 551,969.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,939.60 : 657,941.10 = 369,080.80 : x
  2. Step 2: Convert to fraction form
    439,939.60/657,941.10 = 369,080.80/x
  3. Step 3: Cross multiply
    439,939.60x = 657,941.10 × 369,080.80
  4. Step 4: Simplify right side
    439,939.60x = 242,833,427,540.88
  5. Step 5: Solve for x
    x = 242,833,427,540.88/439,939.60
  6. Step 6: Final answer
    x = 551,969.92

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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.