Home / 428,810.67-591,795.08-237,885.57

Finding the Fourth Proportional to 428,810.67, 591,795.08 and 237,885.57

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Solution

The fourth proportional to 428,810.67, 591,795.08 and 237,885.57 is: 328,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,810.67 : 591,795.08 = 237,885.57 : x
  2. Step 2: Convert to fraction form
    428,810.67/591,795.08 = 237,885.57/x
  3. Step 3: Cross multiply
    428,810.67x = 591,795.08 × 237,885.57
  4. Step 4: Simplify right side
    428,810.67x = 140,779,508,739.57
  5. Step 5: Solve for x
    x = 140,779,508,739.57/428,810.67
  6. Step 6: Final answer
    x = 328,302.25

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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.