Home / 428,165.18-590,868.03-234,573.76

Finding the Fourth Proportional to 428,165.18, 590,868.03 and 234,573.76

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Solution

The fourth proportional to 428,165.18, 590,868.03 and 234,573.76 is: 323,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,165.18 : 590,868.03 = 234,573.76 : x
  2. Step 2: Convert to fraction form
    428,165.18/590,868.03 = 234,573.76/x
  3. Step 3: Cross multiply
    428,165.18x = 590,868.03 × 234,573.76
  4. Step 4: Simplify right side
    428,165.18x = 138,602,135,460.89
  5. Step 5: Solve for x
    x = 138,602,135,460.89/428,165.18
  6. Step 6: Final answer
    x = 323,711.83

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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.