Home / 658,220.16-986,915.52-558,415.20

Finding the Fourth Proportional to 658,220.16, 986,915.52 and 558,415.20

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Solution

The fourth proportional to 658,220.16, 986,915.52 and 558,415.20 is: 837,270.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,220.16 : 986,915.52 = 558,415.20 : x
  2. Step 2: Convert to fraction form
    658,220.16/986,915.52 = 558,415.20/x
  3. Step 3: Cross multiply
    658,220.16x = 986,915.52 × 558,415.20
  4. Step 4: Simplify right side
    658,220.16x = 551,108,627,483.90
  5. Step 5: Solve for x
    x = 551,108,627,483.90/658,220.16
  6. Step 6: Final answer
    x = 837,270.96

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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.