Home / 428,826.40-591,741.66-237,839.20

Finding the Fourth Proportional to 428,826.40, 591,741.66 and 237,839.20

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Solution

The fourth proportional to 428,826.40, 591,741.66 and 237,839.20 is: 328,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,826.40 : 591,741.66 = 237,839.20 : x
  2. Step 2: Convert to fraction form
    428,826.40/591,741.66 = 237,839.20/x
  3. Step 3: Cross multiply
    428,826.40x = 591,741.66 × 237,839.20
  4. Step 4: Simplify right side
    428,826.40x = 140,739,363,021.07
  5. Step 5: Solve for x
    x = 140,739,363,021.07/428,826.40
  6. Step 6: Final answer
    x = 328,196.59

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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.