Home / 678,112.40-1,016,002.20-441,333.20

Finding the Fourth Proportional to 678,112.40, 1,016,002.20 and 441,333.20

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Solution

The fourth proportional to 678,112.40, 1,016,002.20 and 441,333.20 is: 661,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,112.40 : 1,016,002.20 = 441,333.20 : x
  2. Step 2: Convert to fraction form
    678,112.40/1,016,002.20 = 441,333.20/x
  3. Step 3: Cross multiply
    678,112.40x = 1,016,002.20 × 441,333.20
  4. Step 4: Simplify right side
    678,112.40x = 448,395,502,133.04
  5. Step 5: Solve for x
    x = 448,395,502,133.04/678,112.40
  6. Step 6: Final answer
    x = 661,240.68

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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.