Home / 452,548.80-678,823.20-137,021.40

Finding the Fourth Proportional to 452,548.80, 678,823.20 and 137,021.40

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Solution

The fourth proportional to 452,548.80, 678,823.20 and 137,021.40 is: 205,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,548.80 : 678,823.20 = 137,021.40 : x
  2. Step 2: Convert to fraction form
    452,548.80/678,823.20 = 137,021.40/x
  3. Step 3: Cross multiply
    452,548.80x = 678,823.20 × 137,021.40
  4. Step 4: Simplify right side
    452,548.80x = 93,013,305,216.48
  5. Step 5: Solve for x
    x = 93,013,305,216.48/452,548.80
  6. Step 6: Final answer
    x = 205,532.10

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Similar ratio
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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.