Home / 886,919.40-1,330,707.15-287,900.10

Finding the Fourth Proportional to 886,919.40, 1,330,707.15 and 287,900.10

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Solution

The fourth proportional to 886,919.40, 1,330,707.15 and 287,900.10 is: 431,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,919.40 : 1,330,707.15 = 287,900.10 : x
  2. Step 2: Convert to fraction form
    886,919.40/1,330,707.15 = 287,900.10/x
  3. Step 3: Cross multiply
    886,919.40x = 1,330,707.15 × 287,900.10
  4. Step 4: Simplify right side
    886,919.40x = 383,110,721,555.72
  5. Step 5: Solve for x
    x = 383,110,721,555.72/886,919.40
  6. Step 6: Final answer
    x = 431,956.64

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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.