Home / 866,921.80-1,300,382.70-726,953.80

Finding the Fourth Proportional to 866,921.80, 1,300,382.70 and 726,953.80

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Solution

The fourth proportional to 866,921.80, 1,300,382.70 and 726,953.80 is: 1,090,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,921.80 : 1,300,382.70 = 726,953.80 : x
  2. Step 2: Convert to fraction form
    866,921.80/1,300,382.70 = 726,953.80/x
  3. Step 3: Cross multiply
    866,921.80x = 1,300,382.70 × 726,953.80
  4. Step 4: Simplify right side
    866,921.80x = 945,318,145,219.26
  5. Step 5: Solve for x
    x = 945,318,145,219.26/866,921.80
  6. Step 6: Final answer
    x = 1,090,430.70

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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.