Home / 865,868.55-1,298,944.98-266,829.81

Finding the Fourth Proportional to 865,868.55, 1,298,944.98 and 266,829.81

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Solution

The fourth proportional to 865,868.55, 1,298,944.98 and 266,829.81 is: 400,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,868.55 : 1,298,944.98 = 266,829.81 : x
  2. Step 2: Convert to fraction form
    865,868.55/1,298,944.98 = 266,829.81/x
  3. Step 3: Cross multiply
    865,868.55x = 1,298,944.98 × 266,829.81
  4. Step 4: Simplify right side
    865,868.55x = 346,597,242,213.85
  5. Step 5: Solve for x
    x = 346,597,242,213.85/865,868.55
  6. Step 6: Final answer
    x = 400,288.52

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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.