Home / 724,859.60-1,087,289.40-668,872.40

Finding the Fourth Proportional to 724,859.60, 1,087,289.40 and 668,872.40

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Solution

The fourth proportional to 724,859.60, 1,087,289.40 and 668,872.40 is: 1,003,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,859.60 : 1,087,289.40 = 668,872.40 : x
  2. Step 2: Convert to fraction form
    724,859.60/1,087,289.40 = 668,872.40/x
  3. Step 3: Cross multiply
    724,859.60x = 1,087,289.40 × 668,872.40
  4. Step 4: Simplify right side
    724,859.60x = 727,257,870,472.56
  5. Step 5: Solve for x
    x = 727,257,870,472.56/724,859.60
  6. Step 6: Final answer
    x = 1,003,308.60

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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.