Home / 826,501.20-1,239,270.06-320,470.98

Finding the Fourth Proportional to 826,501.20, 1,239,270.06 and 320,470.98

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Solution

The fourth proportional to 826,501.20, 1,239,270.06 and 320,470.98 is: 480,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,501.20 : 1,239,270.06 = 320,470.98 : x
  2. Step 2: Convert to fraction form
    826,501.20/1,239,270.06 = 320,470.98/x
  3. Step 3: Cross multiply
    826,501.20x = 1,239,270.06 × 320,470.98
  4. Step 4: Simplify right side
    826,501.20x = 397,150,090,612.86
  5. Step 5: Solve for x
    x = 397,150,090,612.86/826,501.20
  6. Step 6: Final answer
    x = 480,519.68

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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.