Home / 976,039.60-1,462,115.40-859,140.40

Finding the Fourth Proportional to 976,039.60, 1,462,115.40 and 859,140.40

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Solution

The fourth proportional to 976,039.60, 1,462,115.40 and 859,140.40 is: 1,286,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,039.60 : 1,462,115.40 = 859,140.40 : x
  2. Step 2: Convert to fraction form
    976,039.60/1,462,115.40 = 859,140.40/x
  3. Step 3: Cross multiply
    976,039.60x = 1,462,115.40 × 859,140.40
  4. Step 4: Simplify right side
    976,039.60x = 1,256,162,409,602.16
  5. Step 5: Solve for x
    x = 1,256,162,409,602.16/976,039.60
  6. Step 6: Final answer
    x = 1,286,999.43

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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.