Home / 428,000.06-590,639.55-237,013.22

Finding the Fourth Proportional to 428,000.06, 590,639.55 and 237,013.22

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Solution

The fourth proportional to 428,000.06, 590,639.55 and 237,013.22 is: 327,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,000.06 : 590,639.55 = 237,013.22 : x
  2. Step 2: Convert to fraction form
    428,000.06/590,639.55 = 237,013.22/x
  3. Step 3: Cross multiply
    428,000.06x = 590,639.55 × 237,013.22
  4. Step 4: Simplify right side
    428,000.06x = 139,989,381,604.85
  5. Step 5: Solve for x
    x = 139,989,381,604.85/428,000.06
  6. Step 6: Final answer
    x = 327,077.95

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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.