Home / 627,031.82-865,568.12-423,358.32

Finding the Fourth Proportional to 627,031.82, 865,568.12 and 423,358.32

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Solution

The fourth proportional to 627,031.82, 865,568.12 and 423,358.32 is: 584,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,031.82 : 865,568.12 = 423,358.32 : x
  2. Step 2: Convert to fraction form
    627,031.82/865,568.12 = 423,358.32/x
  3. Step 3: Cross multiply
    627,031.82x = 865,568.12 × 423,358.32
  4. Step 4: Simplify right side
    627,031.82x = 366,445,463,011.97
  5. Step 5: Solve for x
    x = 366,445,463,011.97/627,031.82
  6. Step 6: Final answer
    x = 584,412.87

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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.