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Finding the Fourth Proportional to 384,773.60, 577,160.40 and 314,789.60

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Solution

The fourth proportional to 384,773.60, 577,160.40 and 314,789.60 is: 472,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,773.60 : 577,160.40 = 314,789.60 : x
  2. Step 2: Convert to fraction form
    384,773.60/577,160.40 = 314,789.60/x
  3. Step 3: Cross multiply
    384,773.60x = 577,160.40 × 314,789.60
  4. Step 4: Simplify right side
    384,773.60x = 181,684,091,451.84
  5. Step 5: Solve for x
    x = 181,684,091,451.84/384,773.60
  6. Step 6: Final answer
    x = 472,184.40

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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.