Home / 678,294.36-1,016,085.06-408,274.20

Finding the Fourth Proportional to 678,294.36, 1,016,085.06 and 408,274.20

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Solution

The fourth proportional to 678,294.36, 1,016,085.06 and 408,274.20 is: 611,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,294.36 : 1,016,085.06 = 408,274.20 : x
  2. Step 2: Convert to fraction form
    678,294.36/1,016,085.06 = 408,274.20/x
  3. Step 3: Cross multiply
    678,294.36x = 1,016,085.06 × 408,274.20
  4. Step 4: Simplify right side
    678,294.36x = 414,841,315,003.45
  5. Step 5: Solve for x
    x = 414,841,315,003.45/678,294.36
  6. Step 6: Final answer
    x = 611,594.82

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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.