Home / 624,678.20-935,705.10-343,867.40

Finding the Fourth Proportional to 624,678.20, 935,705.10 and 343,867.40

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Solution

The fourth proportional to 624,678.20, 935,705.10 and 343,867.40 is: 515,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,678.20 : 935,705.10 = 343,867.40 : x
  2. Step 2: Convert to fraction form
    624,678.20/935,705.10 = 343,867.40/x
  3. Step 3: Cross multiply
    624,678.20x = 935,705.10 × 343,867.40
  4. Step 4: Simplify right side
    624,678.20x = 321,758,479,903.74
  5. Step 5: Solve for x
    x = 321,758,479,903.74/624,678.20
  6. Step 6: Final answer
    x = 515,078.77

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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.