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Finding the Fourth Proportional to 385,626.94, 577,434.39 and 310,335.82

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Solution

The fourth proportional to 385,626.94, 577,434.39 and 310,335.82 is: 464,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,626.94 : 577,434.39 = 310,335.82 : x
  2. Step 2: Convert to fraction form
    385,626.94/577,434.39 = 310,335.82/x
  3. Step 3: Cross multiply
    385,626.94x = 577,434.39 × 310,335.82
  4. Step 4: Simplify right side
    385,626.94x = 179,198,574,916.85
  5. Step 5: Solve for x
    x = 179,198,574,916.85/385,626.94
  6. Step 6: Final answer
    x = 464,694.13

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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.