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Finding the Fourth Proportional to 557,276.94, 769,051.08 and 315,552.96

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Solution

The fourth proportional to 557,276.94, 769,051.08 and 315,552.96 is: 435,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,276.94 : 769,051.08 = 315,552.96 : x
  2. Step 2: Convert to fraction form
    557,276.94/769,051.08 = 315,552.96/x
  3. Step 3: Cross multiply
    557,276.94x = 769,051.08 × 315,552.96
  4. Step 4: Simplify right side
    557,276.94x = 242,676,344,685.20
  5. Step 5: Solve for x
    x = 242,676,344,685.20/557,276.94
  6. Step 6: Final answer
    x = 435,468.13

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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.