Home / 724,581.60-1,087,066.80-646,238.40

Finding the Fourth Proportional to 724,581.60, 1,087,066.80 and 646,238.40

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Solution

The fourth proportional to 724,581.60, 1,087,066.80 and 646,238.40 is: 969,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,581.60 : 1,087,066.80 = 646,238.40 : x
  2. Step 2: Convert to fraction form
    724,581.60/1,087,066.80 = 646,238.40/x
  3. Step 3: Cross multiply
    724,581.60x = 1,087,066.80 × 646,238.40
  4. Step 4: Simplify right side
    724,581.60x = 702,504,309,525.12
  5. Step 5: Solve for x
    x = 702,504,309,525.12/724,581.60
  6. Step 6: Final answer
    x = 969,530.98

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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.