Home / 495,120.36-742,776.04-210,805.72

Finding the Fourth Proportional to 495,120.36, 742,776.04 and 210,805.72

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Solution

The fourth proportional to 495,120.36, 742,776.04 and 210,805.72 is: 316,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,120.36 : 742,776.04 = 210,805.72 : x
  2. Step 2: Convert to fraction form
    495,120.36/742,776.04 = 210,805.72/x
  3. Step 3: Cross multiply
    495,120.36x = 742,776.04 × 210,805.72
  4. Step 4: Simplify right side
    495,120.36x = 156,581,437,910.95
  5. Step 5: Solve for x
    x = 156,581,437,910.95/495,120.36
  6. Step 6: Final answer
    x = 316,249.24

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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.