Home / 1,155,715.20-1,735,541.10-821,104.20

Finding the Fourth Proportional to 1,155,715.20, 1,735,541.10 and 821,104.20

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Solution

The fourth proportional to 1,155,715.20, 1,735,541.10 and 821,104.20 is: 1,233,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,715.20 : 1,735,541.10 = 821,104.20 : x
  2. Step 2: Convert to fraction form
    1,155,715.20/1,735,541.10 = 821,104.20/x
  3. Step 3: Cross multiply
    1,155,715.20x = 1,735,541.10 × 821,104.20
  4. Step 4: Simplify right side
    1,155,715.20x = 1,425,060,086,482.62
  5. Step 5: Solve for x
    x = 1,425,060,086,482.62/1,155,715.20
  6. Step 6: Final answer
    x = 1,233,054.72

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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.