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Finding the Fourth Proportional to 559,873.83, 772,640.60 and 345,155.79

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Solution

The fourth proportional to 559,873.83, 772,640.60 and 345,155.79 is: 476,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873.83 : 772,640.60 = 345,155.79 : x
  2. Step 2: Convert to fraction form
    559,873.83/772,640.60 = 345,155.79/x
  3. Step 3: Cross multiply
    559,873.83x = 772,640.60 × 345,155.79
  4. Step 4: Simplify right side
    559,873.83x = 266,681,374,953.30
  5. Step 5: Solve for x
    x = 266,681,374,953.30/559,873.83
  6. Step 6: Final answer
    x = 476,324.06

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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.