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Finding the Fourth Proportional to 555,489.32, 766,574.54 and 300,841.52

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Solution

The fourth proportional to 555,489.32, 766,574.54 and 300,841.52 is: 415,160.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,489.32 : 766,574.54 = 300,841.52 : x
  2. Step 2: Convert to fraction form
    555,489.32/766,574.54 = 300,841.52/x
  3. Step 3: Cross multiply
    555,489.32x = 766,574.54 × 300,841.52
  4. Step 4: Simplify right side
    555,489.32x = 230,617,449,806.90
  5. Step 5: Solve for x
    x = 230,617,449,806.90/555,489.32
  6. Step 6: Final answer
    x = 415,160.91

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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.