Home / 1,640,217.40-2,460,714.90-841,622.20

Finding the Fourth Proportional to 1,640,217.40, 2,460,714.90 and 841,622.20

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Solution

The fourth proportional to 1,640,217.40, 2,460,714.90 and 841,622.20 is: 1,262,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,217.40 : 2,460,714.90 = 841,622.20 : x
  2. Step 2: Convert to fraction form
    1,640,217.40/2,460,714.90 = 841,622.20/x
  3. Step 3: Cross multiply
    1,640,217.40x = 2,460,714.90 × 841,622.20
  4. Step 4: Simplify right side
    1,640,217.40x = 2,070,992,287,710.78
  5. Step 5: Solve for x
    x = 2,070,992,287,710.78/1,640,217.40
  6. Step 6: Final answer
    x = 1,262,632.80

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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.