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Finding the Fourth Proportional to 627,226.84, 939,615.42 and 501,129.40

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Solution

The fourth proportional to 627,226.84, 939,615.42 and 501,129.40 is: 750,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,226.84 : 939,615.42 = 501,129.40 : x
  2. Step 2: Convert to fraction form
    627,226.84/939,615.42 = 501,129.40/x
  3. Step 3: Cross multiply
    627,226.84x = 939,615.42 × 501,129.40
  4. Step 4: Simplify right side
    627,226.84x = 470,868,911,655.35
  5. Step 5: Solve for x
    x = 470,868,911,655.35/627,226.84
  6. Step 6: Final answer
    x = 750,715.50

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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.