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Finding the Fourth Proportional to 627,111.40, 939,111.90 and 502,695.40

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Solution

The fourth proportional to 627,111.40, 939,111.90 and 502,695.40 is: 752,796.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,111.40 : 939,111.90 = 502,695.40 : x
  2. Step 2: Convert to fraction form
    627,111.40/939,111.90 = 502,695.40/x
  3. Step 3: Cross multiply
    627,111.40x = 939,111.90 × 502,695.40
  4. Step 4: Simplify right side
    627,111.40x = 472,087,232,215.26
  5. Step 5: Solve for x
    x = 472,087,232,215.26/627,111.40
  6. Step 6: Final answer
    x = 752,796.44

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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.