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Finding the Fourth Proportional to 1,295,246.30, 1,942,869.45 and 822,854.30

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Solution

The fourth proportional to 1,295,246.30, 1,942,869.45 and 822,854.30 is: 1,234,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,246.30 : 1,942,869.45 = 822,854.30 : x
  2. Step 2: Convert to fraction form
    1,295,246.30/1,942,869.45 = 822,854.30/x
  3. Step 3: Cross multiply
    1,295,246.30x = 1,942,869.45 × 822,854.30
  4. Step 4: Simplify right side
    1,295,246.30x = 1,598,698,481,271.14
  5. Step 5: Solve for x
    x = 1,598,698,481,271.14/1,295,246.30
  6. Step 6: Final answer
    x = 1,234,281.45

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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.