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Finding the Fourth Proportional to 555,726.06, 766,937.31 and 340,836.84

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Solution

The fourth proportional to 555,726.06, 766,937.31 and 340,836.84 is: 470,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,726.06 : 766,937.31 = 340,836.84 : x
  2. Step 2: Convert to fraction form
    555,726.06/766,937.31 = 340,836.84/x
  3. Step 3: Cross multiply
    555,726.06x = 766,937.31 × 340,836.84
  4. Step 4: Simplify right side
    555,726.06x = 261,400,489,218.50
  5. Step 5: Solve for x
    x = 261,400,489,218.50/555,726.06
  6. Step 6: Final answer
    x = 470,376.52

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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.