Home / 1,002,981.50-1,384,138.78-550,272.50

Finding the Fourth Proportional to 1,002,981.50, 1,384,138.78 and 550,272.50

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Solution

The fourth proportional to 1,002,981.50, 1,384,138.78 and 550,272.50 is: 759,389.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,981.50 : 1,384,138.78 = 550,272.50 : x
  2. Step 2: Convert to fraction form
    1,002,981.50/1,384,138.78 = 550,272.50/x
  3. Step 3: Cross multiply
    1,002,981.50x = 1,384,138.78 × 550,272.50
  4. Step 4: Simplify right side
    1,002,981.50x = 761,653,506,817.55
  5. Step 5: Solve for x
    x = 761,653,506,817.55/1,002,981.50
  6. Step 6: Final answer
    x = 759,389.39

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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.