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Finding the Fourth Proportional to 542,307.27, 748,428.84 and 300,665.64

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Solution

The fourth proportional to 542,307.27, 748,428.84 and 300,665.64 is: 414,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,307.27 : 748,428.84 = 300,665.64 : x
  2. Step 2: Convert to fraction form
    542,307.27/748,428.84 = 300,665.64/x
  3. Step 3: Cross multiply
    542,307.27x = 748,428.84 × 300,665.64
  4. Step 4: Simplify right side
    542,307.27x = 225,026,836,173.06
  5. Step 5: Solve for x
    x = 225,026,836,173.06/542,307.27
  6. Step 6: Final answer
    x = 414,943.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.