Home / 1,087,709.60-1,632,147.60-456,687.20

Finding the Fourth Proportional to 1,087,709.60, 1,632,147.60 and 456,687.20

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Solution

The fourth proportional to 1,087,709.60, 1,632,147.60 and 456,687.20 is: 685,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,709.60 : 1,632,147.60 = 456,687.20 : x
  2. Step 2: Convert to fraction form
    1,087,709.60/1,632,147.60 = 456,687.20/x
  3. Step 3: Cross multiply
    1,087,709.60x = 1,632,147.60 × 456,687.20
  4. Step 4: Simplify right side
    1,087,709.60x = 745,380,917,430.72
  5. Step 5: Solve for x
    x = 745,380,917,430.72/1,087,709.60
  6. Step 6: Final answer
    x = 685,275.66

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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.