Home / 865,334.90-1,298,125.37-266,345.98

Finding the Fourth Proportional to 865,334.90, 1,298,125.37 and 266,345.98

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Solution

The fourth proportional to 865,334.90, 1,298,125.37 and 266,345.98 is: 399,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,334.90 : 1,298,125.37 = 266,345.98 : x
  2. Step 2: Convert to fraction form
    865,334.90/1,298,125.37 = 266,345.98/x
  3. Step 3: Cross multiply
    865,334.90x = 1,298,125.37 × 266,345.98
  4. Step 4: Simplify right side
    865,334.90x = 345,750,471,256.06
  5. Step 5: Solve for x
    x = 345,750,471,256.06/865,334.90
  6. Step 6: Final answer
    x = 399,556.83

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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.