Home / 525,046.50-787,990.14-272,399.40

Finding the Fourth Proportional to 525,046.50, 787,990.14 and 272,399.40

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Solution

The fourth proportional to 525,046.50, 787,990.14 and 272,399.40 is: 408,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,046.50 : 787,990.14 = 272,399.40 : x
  2. Step 2: Convert to fraction form
    525,046.50/787,990.14 = 272,399.40/x
  3. Step 3: Cross multiply
    525,046.50x = 787,990.14 × 272,399.40
  4. Step 4: Simplify right side
    525,046.50x = 214,648,039,979.92
  5. Step 5: Solve for x
    x = 214,648,039,979.92/525,046.50
  6. Step 6: Final answer
    x = 408,817.20

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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.