Home / 1,097,688.20-1,643,306.70-818,443.40

Finding the Fourth Proportional to 1,097,688.20, 1,643,306.70 and 818,443.40

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Solution

The fourth proportional to 1,097,688.20, 1,643,306.70 and 818,443.40 is: 1,225,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,688.20 : 1,643,306.70 = 818,443.40 : x
  2. Step 2: Convert to fraction form
    1,097,688.20/1,643,306.70 = 818,443.40/x
  3. Step 3: Cross multiply
    1,097,688.20x = 1,643,306.70 × 818,443.40
  4. Step 4: Simplify right side
    1,097,688.20x = 1,344,953,522,790.78
  5. Step 5: Solve for x
    x = 1,344,953,522,790.78/1,097,688.20
  6. Step 6: Final answer
    x = 1,225,260.07

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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.