Home / 492,430.12-679,402.50-301,244.20

Finding the Fourth Proportional to 492,430.12, 679,402.50 and 301,244.20

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Solution

The fourth proportional to 492,430.12, 679,402.50 and 301,244.20 is: 415,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,430.12 : 679,402.50 = 301,244.20 : x
  2. Step 2: Convert to fraction form
    492,430.12/679,402.50 = 301,244.20/x
  3. Step 3: Cross multiply
    492,430.12x = 679,402.50 × 301,244.20
  4. Step 4: Simplify right side
    492,430.12x = 204,666,062,590.50
  5. Step 5: Solve for x
    x = 204,666,062,590.50/492,430.12
  6. Step 6: Final answer
    x = 415,624.58

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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.