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Finding the Fourth Proportional to 551,407.70, 827,111.55 and 502,418.90

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Solution

The fourth proportional to 551,407.70, 827,111.55 and 502,418.90 is: 753,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,407.70 : 827,111.55 = 502,418.90 : x
  2. Step 2: Convert to fraction form
    551,407.70/827,111.55 = 502,418.90/x
  3. Step 3: Cross multiply
    551,407.70x = 827,111.55 × 502,418.90
  4. Step 4: Simplify right side
    551,407.70x = 415,556,475,128.30
  5. Step 5: Solve for x
    x = 415,556,475,128.30/551,407.70
  6. Step 6: Final answer
    x = 753,628.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.