Home / 428,799.40-591,704.40-237,812.20

Finding the Fourth Proportional to 428,799.40, 591,704.40 and 237,812.20

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Solution

The fourth proportional to 428,799.40, 591,704.40 and 237,812.20 is: 328,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,799.40 : 591,704.40 = 237,812.20 : x
  2. Step 2: Convert to fraction form
    428,799.40/591,704.40 = 237,812.20/x
  3. Step 3: Cross multiply
    428,799.40x = 591,704.40 × 237,812.20
  4. Step 4: Simplify right side
    428,799.40x = 140,714,525,113.68
  5. Step 5: Solve for x
    x = 140,714,525,113.68/428,799.40
  6. Step 6: Final answer
    x = 328,159.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.