Home / 800,345.54-1,200,520.34-327,030.91

Finding the Fourth Proportional to 800,345.54, 1,200,520.34 and 327,030.91

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Solution

The fourth proportional to 800,345.54, 1,200,520.34 and 327,030.91 is: 490,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,345.54 : 1,200,520.34 = 327,030.91 : x
  2. Step 2: Convert to fraction form
    800,345.54/1,200,520.34 = 327,030.91/x
  3. Step 3: Cross multiply
    800,345.54x = 1,200,520.34 × 327,030.91
  4. Step 4: Simplify right side
    800,345.54x = 392,607,257,079.99
  5. Step 5: Solve for x
    x = 392,607,257,079.99/800,345.54
  6. Step 6: Final answer
    x = 490,547.19

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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.