Home / 896,930.39-1,345,667.20-320,478.18

Finding the Fourth Proportional to 896,930.39, 1,345,667.20 and 320,478.18

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Solution

The fourth proportional to 896,930.39, 1,345,667.20 and 320,478.18 is: 480,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,930.39 : 1,345,667.20 = 320,478.18 : x
  2. Step 2: Convert to fraction form
    896,930.39/1,345,667.20 = 320,478.18/x
  3. Step 3: Cross multiply
    896,930.39x = 1,345,667.20 × 320,478.18
  4. Step 4: Simplify right side
    896,930.39x = 431,256,975,141.70
  5. Step 5: Solve for x
    x = 431,256,975,141.70/896,930.39
  6. Step 6: Final answer
    x = 480,814.32

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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.