Home / 428,820.30-591,756.99-237,851.46

Finding the Fourth Proportional to 428,820.30, 591,756.99 and 237,851.46

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Solution

The fourth proportional to 428,820.30, 591,756.99 and 237,851.46 is: 328,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,820.30 : 591,756.99 = 237,851.46 : x
  2. Step 2: Convert to fraction form
    428,820.30/591,756.99 = 237,851.46/x
  3. Step 3: Cross multiply
    428,820.30x = 591,756.99 × 237,851.46
  4. Step 4: Simplify right side
    428,820.30x = 140,750,264,036.71
  5. Step 5: Solve for x
    x = 140,750,264,036.71/428,820.30
  6. Step 6: Final answer
    x = 328,226.68

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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.