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Finding the Fourth Proportional to 665,758.56, 918,746.82 and 363,952.56

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Solution

The fourth proportional to 665,758.56, 918,746.82 and 363,952.56 is: 502,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,758.56 : 918,746.82 = 363,952.56 : x
  2. Step 2: Convert to fraction form
    665,758.56/918,746.82 = 363,952.56/x
  3. Step 3: Cross multiply
    665,758.56x = 918,746.82 × 363,952.56
  4. Step 4: Simplify right side
    665,758.56x = 334,380,257,130.86
  5. Step 5: Solve for x
    x = 334,380,257,130.86/665,758.56
  6. Step 6: Final answer
    x = 502,254.54

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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.