Home / 658,428.59-987,644.16-253,811.34

Finding the Fourth Proportional to 658,428.59, 987,644.16 and 253,811.34

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Solution

The fourth proportional to 658,428.59, 987,644.16 and 253,811.34 is: 380,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,428.59 : 987,644.16 = 253,811.34 : x
  2. Step 2: Convert to fraction form
    658,428.59/987,644.16 = 253,811.34/x
  3. Step 3: Cross multiply
    658,428.59x = 987,644.16 × 253,811.34
  4. Step 4: Simplify right side
    658,428.59x = 250,675,287,058.25
  5. Step 5: Solve for x
    x = 250,675,287,058.25/658,428.59
  6. Step 6: Final answer
    x = 380,717.50

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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.