Home / 1,073,122.40-1,480,585.96-643,245.68

Finding the Fourth Proportional to 1,073,122.40, 1,480,585.96 and 643,245.68

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Solution

The fourth proportional to 1,073,122.40, 1,480,585.96 and 643,245.68 is: 887,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,122.40 : 1,480,585.96 = 643,245.68 : x
  2. Step 2: Convert to fraction form
    1,073,122.40/1,480,585.96 = 643,245.68/x
  3. Step 3: Cross multiply
    1,073,122.40x = 1,480,585.96 × 643,245.68
  4. Step 4: Simplify right side
    1,073,122.40x = 952,380,522,638.65
  5. Step 5: Solve for x
    x = 952,380,522,638.65/1,073,122.40
  6. Step 6: Final answer
    x = 887,485.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.