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Finding the Fourth Proportional to 511,501.92, 767,726.10 and 258,959.85

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Solution

The fourth proportional to 511,501.92, 767,726.10 and 258,959.85 is: 388,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,501.92 : 767,726.10 = 258,959.85 : x
  2. Step 2: Convert to fraction form
    511,501.92/767,726.10 = 258,959.85/x
  3. Step 3: Cross multiply
    511,501.92x = 767,726.10 × 258,959.85
  4. Step 4: Simplify right side
    511,501.92x = 198,810,235,697.09
  5. Step 5: Solve for x
    x = 198,810,235,697.09/511,501.92
  6. Step 6: Final answer
    x = 388,679.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.