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Finding the Fourth Proportional to 627,066.71, 865,616.72 and 423,393.22

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Solution

The fourth proportional to 627,066.71, 865,616.72 and 423,393.22 is: 584,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,066.71 : 865,616.72 = 423,393.22 : x
  2. Step 2: Convert to fraction form
    627,066.71/865,616.72 = 423,393.22/x
  3. Step 3: Cross multiply
    627,066.71x = 865,616.72 × 423,393.22
  4. Step 4: Simplify right side
    627,066.71x = 366,496,250,366.64
  5. Step 5: Solve for x
    x = 366,496,250,366.64/627,066.71
  6. Step 6: Final answer
    x = 584,461.34

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1.5x scale

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.