Home / 1,640,320.80-2,460,481.20-931,732.80

Finding the Fourth Proportional to 1,640,320.80, 2,460,481.20 and 931,732.80

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Solution

The fourth proportional to 1,640,320.80, 2,460,481.20 and 931,732.80 is: 1,397,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,320.80 : 2,460,481.20 = 931,732.80 : x
  2. Step 2: Convert to fraction form
    1,640,320.80/2,460,481.20 = 931,732.80/x
  3. Step 3: Cross multiply
    1,640,320.80x = 2,460,481.20 × 931,732.80
  4. Step 4: Simplify right side
    1,640,320.80x = 2,292,511,037,823.36
  5. Step 5: Solve for x
    x = 2,292,511,037,823.36/1,640,320.80
  6. Step 6: Final answer
    x = 1,397,599.20

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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.