Home / 976,276.09-1,464,370.40-266,301.78

Finding the Fourth Proportional to 976,276.09, 1,464,370.40 and 266,301.78

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Solution

The fourth proportional to 976,276.09, 1,464,370.40 and 266,301.78 is: 399,440.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,276.09 : 1,464,370.40 = 266,301.78 : x
  2. Step 2: Convert to fraction form
    976,276.09/1,464,370.40 = 266,301.78/x
  3. Step 3: Cross multiply
    976,276.09x = 1,464,370.40 × 266,301.78
  4. Step 4: Simplify right side
    976,276.09x = 389,964,437,775.73
  5. Step 5: Solve for x
    x = 389,964,437,775.73/976,276.09
  6. Step 6: Final answer
    x = 399,440.73

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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.