Home / 439,938.60-657,939.60-369,079.80

Finding the Fourth Proportional to 439,938.60, 657,939.60 and 369,079.80

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Solution

The fourth proportional to 439,938.60, 657,939.60 and 369,079.80 is: 551,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,938.60 : 657,939.60 = 369,079.80 : x
  2. Step 2: Convert to fraction form
    439,938.60/657,939.60 = 369,079.80/x
  3. Step 3: Cross multiply
    439,938.60x = 657,939.60 × 369,079.80
  4. Step 4: Simplify right side
    439,938.60x = 242,832,215,980.08
  5. Step 5: Solve for x
    x = 242,832,215,980.08/439,938.60
  6. Step 6: Final answer
    x = 551,968.42

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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.