Home / 495,087.70-742,631.55-327,126.10

Finding the Fourth Proportional to 495,087.70, 742,631.55 and 327,126.10

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Solution

The fourth proportional to 495,087.70, 742,631.55 and 327,126.10 is: 490,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,087.70 : 742,631.55 = 327,126.10 : x
  2. Step 2: Convert to fraction form
    495,087.70/742,631.55 = 327,126.10/x
  3. Step 3: Cross multiply
    495,087.70x = 742,631.55 × 327,126.10
  4. Step 4: Simplify right side
    495,087.70x = 242,934,162,688.46
  5. Step 5: Solve for x
    x = 242,934,162,688.46/495,087.70
  6. Step 6: Final answer
    x = 490,689.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.