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Finding the Fourth Proportional to 627,464.40, 939,641.40 and 503,048.40

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Solution

The fourth proportional to 627,464.40, 939,641.40 and 503,048.40 is: 753,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,464.40 : 939,641.40 = 503,048.40 : x
  2. Step 2: Convert to fraction form
    627,464.40/939,641.40 = 503,048.40/x
  3. Step 3: Cross multiply
    627,464.40x = 939,641.40 × 503,048.40
  4. Step 4: Simplify right side
    627,464.40x = 472,685,102,843.76
  5. Step 5: Solve for x
    x = 472,685,102,843.76/627,464.40
  6. Step 6: Final answer
    x = 753,325.77

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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.