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Finding the Fourth Proportional to 551,802.90, 826,610.85 and 486,047.10

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Solution

The fourth proportional to 551,802.90, 826,610.85 and 486,047.10 is: 728,107.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,802.90 : 826,610.85 = 486,047.10 : x
  2. Step 2: Convert to fraction form
    551,802.90/826,610.85 = 486,047.10/x
  3. Step 3: Cross multiply
    551,802.90x = 826,610.85 × 486,047.10
  4. Step 4: Simplify right side
    551,802.90x = 401,771,806,471.04
  5. Step 5: Solve for x
    x = 401,771,806,471.04/551,802.90
  6. Step 6: Final answer
    x = 728,107.46

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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.