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Finding the Fourth Proportional to 541,630.83, 747,534.93 and 309,058.23

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Solution

The fourth proportional to 541,630.83, 747,534.93 and 309,058.23 is: 426,548.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,630.83 : 747,534.93 = 309,058.23 : x
  2. Step 2: Convert to fraction form
    541,630.83/747,534.93 = 309,058.23/x
  3. Step 3: Cross multiply
    541,630.83x = 747,534.93 × 309,058.23
  4. Step 4: Simplify right side
    541,630.83x = 231,031,822,328.97
  5. Step 5: Solve for x
    x = 231,031,822,328.97/541,630.83
  6. Step 6: Final answer
    x = 426,548.51

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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.