Home / 428,474.02-591,312.81-237,487.56

Finding the Fourth Proportional to 428,474.02, 591,312.81 and 237,487.56

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Solution

The fourth proportional to 428,474.02, 591,312.81 and 237,487.56 is: 327,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,474.02 : 591,312.81 = 237,487.56 : x
  2. Step 2: Convert to fraction form
    428,474.02/591,312.81 = 237,487.56/x
  3. Step 3: Cross multiply
    428,474.02x = 591,312.81 × 237,487.56
  4. Step 4: Simplify right side
    428,474.02x = 140,429,437,921.93
  5. Step 5: Solve for x
    x = 140,429,437,921.93/428,474.02
  6. Step 6: Final answer
    x = 327,743.18

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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.