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Finding the Fourth Proportional to 658,889.10, 988,042.05 and 303,720.30

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Solution

The fourth proportional to 658,889.10, 988,042.05 and 303,720.30 is: 455,446.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,889.10 : 988,042.05 = 303,720.30 : x
  2. Step 2: Convert to fraction form
    658,889.10/988,042.05 = 303,720.30/x
  3. Step 3: Cross multiply
    658,889.10x = 988,042.05 × 303,720.30
  4. Step 4: Simplify right side
    658,889.10x = 300,088,427,838.62
  5. Step 5: Solve for x
    x = 300,088,427,838.62/658,889.10
  6. Step 6: Final answer
    x = 455,446.03

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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.