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Finding the Fourth Proportional to 566,245.16, 781,418.52 and 311,596.52

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Solution

The fourth proportional to 566,245.16, 781,418.52 and 311,596.52 is: 430,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,245.16 : 781,418.52 = 311,596.52 : x
  2. Step 2: Convert to fraction form
    566,245.16/781,418.52 = 311,596.52/x
  3. Step 3: Cross multiply
    566,245.16x = 781,418.52 × 311,596.52
  4. Step 4: Simplify right side
    566,245.16x = 243,487,291,495.55
  5. Step 5: Solve for x
    x = 243,487,291,495.55/566,245.16
  6. Step 6: Final answer
    x = 430,003.31

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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.