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Finding the Fourth Proportional to 561,774.59, 775,031.09 and 357,788.95

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Solution

The fourth proportional to 561,774.59, 775,031.09 and 357,788.95 is: 493,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,774.59 : 775,031.09 = 357,788.95 : x
  2. Step 2: Convert to fraction form
    561,774.59/775,031.09 = 357,788.95/x
  3. Step 3: Cross multiply
    561,774.59x = 775,031.09 × 357,788.95
  4. Step 4: Simplify right side
    561,774.59x = 277,297,556,181.93
  5. Step 5: Solve for x
    x = 277,297,556,181.93/561,774.59
  6. Step 6: Final answer
    x = 493,610.00

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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.