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Finding the Fourth Proportional to 556,058.40, 767,042.88 and 329,621.28

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Solution

The fourth proportional to 556,058.40, 767,042.88 and 329,621.28 is: 454,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,058.40 : 767,042.88 = 329,621.28 : x
  2. Step 2: Convert to fraction form
    556,058.40/767,042.88 = 329,621.28/x
  3. Step 3: Cross multiply
    556,058.40x = 767,042.88 × 329,621.28
  4. Step 4: Simplify right side
    556,058.40x = 252,833,655,920.49
  5. Step 5: Solve for x
    x = 252,833,655,920.49/556,058.40
  6. Step 6: Final answer
    x = 454,689.03

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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.