Home / 865,334.76-1,298,125.12-266,345.82

Finding the Fourth Proportional to 865,334.76, 1,298,125.12 and 266,345.82

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Solution

The fourth proportional to 865,334.76, 1,298,125.12 and 266,345.82 is: 399,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,334.76 : 1,298,125.12 = 266,345.82 : x
  2. Step 2: Convert to fraction form
    865,334.76/1,298,125.12 = 266,345.82/x
  3. Step 3: Cross multiply
    865,334.76x = 1,298,125.12 × 266,345.82
  4. Step 4: Simplify right side
    865,334.76x = 345,750,199,549.00
  5. Step 5: Solve for x
    x = 345,750,199,549.00/865,334.76
  6. Step 6: Final answer
    x = 399,556.58

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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.