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Finding the Fourth Proportional to 555,599.30, 766,727.12 and 300,950.49

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Solution

The fourth proportional to 555,599.30, 766,727.12 and 300,950.49 is: 415,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,599.30 : 766,727.12 = 300,950.49 : x
  2. Step 2: Convert to fraction form
    555,599.30/766,727.12 = 300,950.49/x
  3. Step 3: Cross multiply
    555,599.30x = 766,727.12 × 300,950.49
  4. Step 4: Simplify right side
    555,599.30x = 230,746,900,082.21
  5. Step 5: Solve for x
    x = 230,746,900,082.21/555,599.30
  6. Step 6: Final answer
    x = 415,311.72

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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.