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Finding the Fourth Proportional to 627,351.30, 939,763.95 and 289,927.26

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Solution

The fourth proportional to 627,351.30, 939,763.95 and 289,927.26 is: 434,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,351.30 : 939,763.95 = 289,927.26 : x
  2. Step 2: Convert to fraction form
    627,351.30/939,763.95 = 289,927.26/x
  3. Step 3: Cross multiply
    627,351.30x = 939,763.95 × 289,927.26
  4. Step 4: Simplify right side
    627,351.30x = 272,463,187,070.28
  5. Step 5: Solve for x
    x = 272,463,187,070.28/627,351.30
  6. Step 6: Final answer
    x = 434,307.20

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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.