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Finding the Fourth Proportional to 554,984.66, 765,876.02 and 300,335.85

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Solution

The fourth proportional to 554,984.66, 765,876.02 and 300,335.85 is: 414,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,984.66 : 765,876.02 = 300,335.85 : x
  2. Step 2: Convert to fraction form
    554,984.66/765,876.02 = 300,335.85/x
  3. Step 3: Cross multiply
    554,984.66x = 765,876.02 × 300,335.85
  4. Step 4: Simplify right side
    554,984.66x = 230,020,023,959.64
  5. Step 5: Solve for x
    x = 230,020,023,959.64/554,984.66
  6. Step 6: Final answer
    x = 414,461.95

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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.