Home / 1,640,296.70-2,460,445.05-1,618,178.30

Finding the Fourth Proportional to 1,640,296.70, 2,460,445.05 and 1,618,178.30

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Solution

The fourth proportional to 1,640,296.70, 2,460,445.05 and 1,618,178.30 is: 2,427,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,296.70 : 2,460,445.05 = 1,618,178.30 : x
  2. Step 2: Convert to fraction form
    1,640,296.70/2,460,445.05 = 1,618,178.30/x
  3. Step 3: Cross multiply
    1,640,296.70x = 2,460,445.05 × 1,618,178.30
  4. Step 4: Simplify right side
    1,640,296.70x = 3,981,438,788,252.42
  5. Step 5: Solve for x
    x = 3,981,438,788,252.42/1,640,296.70
  6. Step 6: Final answer
    x = 2,427,267.45

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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.