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Finding the Fourth Proportional to 1,295,898.40, 1,943,847.60 and 822,923.20

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Solution

The fourth proportional to 1,295,898.40, 1,943,847.60 and 822,923.20 is: 1,234,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,898.40 : 1,943,847.60 = 822,923.20 : x
  2. Step 2: Convert to fraction form
    1,295,898.40/1,943,847.60 = 822,923.20/x
  3. Step 3: Cross multiply
    1,295,898.40x = 1,943,847.60 × 822,923.20
  4. Step 4: Simplify right side
    1,295,898.40x = 1,599,637,287,304.32
  5. Step 5: Solve for x
    x = 1,599,637,287,304.32/1,295,898.40
  6. Step 6: Final answer
    x = 1,234,384.80

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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.