Home / 434,456.40-651,490.20-197,677.20

Finding the Fourth Proportional to 434,456.40, 651,490.20 and 197,677.20

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Solution

The fourth proportional to 434,456.40, 651,490.20 and 197,677.20 is: 296,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,456.40 : 651,490.20 = 197,677.20 : x
  2. Step 2: Convert to fraction form
    434,456.40/651,490.20 = 197,677.20/x
  3. Step 3: Cross multiply
    434,456.40x = 651,490.20 × 197,677.20
  4. Step 4: Simplify right side
    434,456.40x = 128,784,758,563.44
  5. Step 5: Solve for x
    x = 128,784,758,563.44/434,456.40
  6. Step 6: Final answer
    x = 296,427.35

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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.