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Finding the Fourth Proportional to 662,310.84, 913,963.56 and 375,813.84

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Solution

The fourth proportional to 662,310.84, 913,963.56 and 375,813.84 is: 518,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,310.84 : 913,963.56 = 375,813.84 : x
  2. Step 2: Convert to fraction form
    662,310.84/913,963.56 = 375,813.84/x
  3. Step 3: Cross multiply
    662,310.84x = 913,963.56 × 375,813.84
  4. Step 4: Simplify right side
    662,310.84x = 343,480,155,103.67
  5. Step 5: Solve for x
    x = 343,480,155,103.67/662,310.84
  6. Step 6: Final answer
    x = 518,608.69

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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.