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Finding the Fourth Proportional to 589,397.50, 884,096.25 and 215,420.50

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Solution

The fourth proportional to 589,397.50, 884,096.25 and 215,420.50 is: 323,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,397.50 : 884,096.25 = 215,420.50 : x
  2. Step 2: Convert to fraction form
    589,397.50/884,096.25 = 215,420.50/x
  3. Step 3: Cross multiply
    589,397.50x = 884,096.25 × 215,420.50
  4. Step 4: Simplify right side
    589,397.50x = 190,452,456,223.13
  5. Step 5: Solve for x
    x = 190,452,456,223.13/589,397.50
  6. Step 6: Final answer
    x = 323,130.75

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Similar ratio
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1.5x scale

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.