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Finding the Fourth Proportional to 555,808.38, 767,018.21 and 301,159.50

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Solution

The fourth proportional to 555,808.38, 767,018.21 and 301,159.50 is: 415,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,808.38 : 767,018.21 = 301,159.50 : x
  2. Step 2: Convert to fraction form
    555,808.38/767,018.21 = 301,159.50/x
  3. Step 3: Cross multiply
    555,808.38x = 767,018.21 × 301,159.50
  4. Step 4: Simplify right side
    555,808.38x = 230,994,819,108.70
  5. Step 5: Solve for x
    x = 230,994,819,108.70/555,808.38
  6. Step 6: Final answer
    x = 415,601.54

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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.