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Finding the Fourth Proportional to 541,643.88, 747,459.42 and 299,921.26

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Solution

The fourth proportional to 541,643.88, 747,459.42 and 299,921.26 is: 413,886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,643.88 : 747,459.42 = 299,921.26 : x
  2. Step 2: Convert to fraction form
    541,643.88/747,459.42 = 299,921.26/x
  3. Step 3: Cross multiply
    541,643.88x = 747,459.42 × 299,921.26
  4. Step 4: Simplify right side
    541,643.88x = 224,178,969,176.62
  5. Step 5: Solve for x
    x = 224,178,969,176.62/541,643.88
  6. Step 6: Final answer
    x = 413,886.28

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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.