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Finding the Fourth Proportional to 557,424.68, 769,264.29 and 315,701.94

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Solution

The fourth proportional to 557,424.68, 769,264.29 and 315,701.94 is: 435,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,424.68 : 769,264.29 = 315,701.94 : x
  2. Step 2: Convert to fraction form
    557,424.68/769,264.29 = 315,701.94/x
  3. Step 3: Cross multiply
    557,424.68x = 769,264.29 × 315,701.94
  4. Step 4: Simplify right side
    557,424.68x = 242,858,228,725.72
  5. Step 5: Solve for x
    x = 242,858,228,725.72/557,424.68
  6. Step 6: Final answer
    x = 435,679.01

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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.