Home / 288,891.24-433,335.60-78,528.57

Finding the Fourth Proportional to 288,891.24, 433,335.60 and 78,528.57

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Solution

The fourth proportional to 288,891.24, 433,335.60 and 78,528.57 is: 117,792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,891.24 : 433,335.60 = 78,528.57 : x
  2. Step 2: Convert to fraction form
    288,891.24/433,335.60 = 78,528.57/x
  3. Step 3: Cross multiply
    288,891.24x = 433,335.60 × 78,528.57
  4. Step 4: Simplify right side
    288,891.24x = 34,029,224,998.09
  5. Step 5: Solve for x
    x = 34,029,224,998.09/288,891.24
  6. Step 6: Final answer
    x = 117,792.51

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1.5x scale

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.