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Finding the Fourth Proportional to 551,407.10, 827,110.65 and 374,459.90

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Solution

The fourth proportional to 551,407.10, 827,110.65 and 374,459.90 is: 561,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,407.10 : 827,110.65 = 374,459.90 : x
  2. Step 2: Convert to fraction form
    551,407.10/827,110.65 = 374,459.90/x
  3. Step 3: Cross multiply
    551,407.10x = 827,110.65 × 374,459.90
  4. Step 4: Simplify right side
    551,407.10x = 309,719,771,287.94
  5. Step 5: Solve for x
    x = 309,719,771,287.94/551,407.10
  6. Step 6: Final answer
    x = 561,689.85

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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.