Home / 492,445.12-679,423.04-301,259.20

Finding the Fourth Proportional to 492,445.12, 679,423.04 and 301,259.20

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Solution

The fourth proportional to 492,445.12, 679,423.04 and 301,259.20 is: 415,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,445.12 : 679,423.04 = 301,259.20 : x
  2. Step 2: Convert to fraction form
    492,445.12/679,423.04 = 301,259.20/x
  3. Step 3: Cross multiply
    492,445.12x = 679,423.04 × 301,259.20
  4. Step 4: Simplify right side
    492,445.12x = 204,682,441,491.97
  5. Step 5: Solve for x
    x = 204,682,441,491.97/492,445.12
  6. Step 6: Final answer
    x = 415,645.18

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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.