Home / 1,778,631.48-2,669,385.78-1,378,323

Finding the Fourth Proportional to 1,778,631.48, 2,669,385.78 and 1,378,323

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Solution

The fourth proportional to 1,778,631.48, 2,669,385.78 and 1,378,323 is: 2,068,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,631.48 : 2,669,385.78 = 1,378,323 : x
  2. Step 2: Convert to fraction form
    1,778,631.48/2,669,385.78 = 1,378,323/x
  3. Step 3: Cross multiply
    1,778,631.48x = 2,669,385.78 × 1,378,323
  4. Step 4: Simplify right side
    1,778,631.48x = 3,679,275,816,446.94
  5. Step 5: Solve for x
    x = 3,679,275,816,446.94/1,778,631.48
  6. Step 6: Final answer
    x = 2,068,599.29

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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.