Home / 646,425.56-892,058.77-356,031.55

Finding the Fourth Proportional to 646,425.56, 892,058.77 and 356,031.55

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Solution

The fourth proportional to 646,425.56, 892,058.77 and 356,031.55 is: 491,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,425.56 : 892,058.77 = 356,031.55 : x
  2. Step 2: Convert to fraction form
    646,425.56/892,058.77 = 356,031.55/x
  3. Step 3: Cross multiply
    646,425.56x = 892,058.77 × 356,031.55
  4. Step 4: Simplify right side
    646,425.56x = 317,601,068,134.31
  5. Step 5: Solve for x
    x = 317,601,068,134.31/646,425.56
  6. Step 6: Final answer
    x = 491,318.86

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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.