Home / 898,401.20-1,347,601.80-426,009.20

Finding the Fourth Proportional to 898,401.20, 1,347,601.80 and 426,009.20

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Solution

The fourth proportional to 898,401.20, 1,347,601.80 and 426,009.20 is: 639,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,401.20 : 1,347,601.80 = 426,009.20 : x
  2. Step 2: Convert to fraction form
    898,401.20/1,347,601.80 = 426,009.20/x
  3. Step 3: Cross multiply
    898,401.20x = 1,347,601.80 × 426,009.20
  4. Step 4: Simplify right side
    898,401.20x = 574,090,764,736.56
  5. Step 5: Solve for x
    x = 574,090,764,736.56/898,401.20
  6. Step 6: Final answer
    x = 639,013.80

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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.