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Finding the Fourth Proportional to 486,017.01, 670,266.90 and 304,748.73

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Solution

The fourth proportional to 486,017.01, 670,266.90 and 304,748.73 is: 420,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,017.01 : 670,266.90 = 304,748.73 : x
  2. Step 2: Convert to fraction form
    486,017.01/670,266.90 = 304,748.73/x
  3. Step 3: Cross multiply
    486,017.01x = 670,266.90 × 304,748.73
  4. Step 4: Simplify right side
    486,017.01x = 204,262,986,536.04
  5. Step 5: Solve for x
    x = 204,262,986,536.04/486,017.01
  6. Step 6: Final answer
    x = 420,279.50

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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.