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Finding the Fourth Proportional to 555,666, 766,819.08 and 301,017.12

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Solution

The fourth proportional to 555,666, 766,819.08 and 301,017.12 is: 415,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,666 : 766,819.08 = 301,017.12 : x
  2. Step 2: Convert to fraction form
    555,666/766,819.08 = 301,017.12/x
  3. Step 3: Cross multiply
    555,666x = 766,819.08 × 301,017.12
  4. Step 4: Simplify right side
    555,666x = 230,825,671,022.65
  5. Step 5: Solve for x
    x = 230,825,671,022.65/555,666
  6. Step 6: Final answer
    x = 415,403.63

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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.