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Finding the Fourth Proportional to 650,801.30, 898,079.55 and 378,877.01

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Solution

The fourth proportional to 650,801.30, 898,079.55 and 378,877.01 is: 522,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,801.30 : 898,079.55 = 378,877.01 : x
  2. Step 2: Convert to fraction form
    650,801.30/898,079.55 = 378,877.01/x
  3. Step 3: Cross multiply
    650,801.30x = 898,079.55 × 378,877.01
  4. Step 4: Simplify right side
    650,801.30x = 340,261,694,646.15
  5. Step 5: Solve for x
    x = 340,261,694,646.15/650,801.30
  6. Step 6: Final answer
    x = 522,835.00

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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.