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Finding the Fourth Proportional to 536,058.16, 739,760.26 and 309,703.66

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Solution

The fourth proportional to 536,058.16, 739,760.26 and 309,703.66 is: 427,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,058.16 : 739,760.26 = 309,703.66 : x
  2. Step 2: Convert to fraction form
    536,058.16/739,760.26 = 309,703.66/x
  3. Step 3: Cross multiply
    536,058.16x = 739,760.26 × 309,703.66
  4. Step 4: Simplify right side
    536,058.16x = 229,106,460,044.55
  5. Step 5: Solve for x
    x = 229,106,460,044.55/536,058.16
  6. Step 6: Final answer
    x = 427,391.05

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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.