Home / 434,517.35-651,825.23-389,869.74

Finding the Fourth Proportional to 434,517.35, 651,825.23 and 389,869.74

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Solution

The fourth proportional to 434,517.35, 651,825.23 and 389,869.74 is: 584,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,517.35 : 651,825.23 = 389,869.74 : x
  2. Step 2: Convert to fraction form
    434,517.35/651,825.23 = 389,869.74/x
  3. Step 3: Cross multiply
    434,517.35x = 651,825.23 × 389,869.74
  4. Step 4: Simplify right side
    434,517.35x = 254,126,930,996.19
  5. Step 5: Solve for x
    x = 254,126,930,996.19/434,517.35
  6. Step 6: Final answer
    x = 584,848.76

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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.