Home / 1,638,116.60-2,260,612.13-913,011.03

Finding the Fourth Proportional to 1,638,116.60, 2,260,612.13 and 913,011.03

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Solution

The fourth proportional to 1,638,116.60, 2,260,612.13 and 913,011.03 is: 1,259,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,116.60 : 2,260,612.13 = 913,011.03 : x
  2. Step 2: Convert to fraction form
    1,638,116.60/2,260,612.13 = 913,011.03/x
  3. Step 3: Cross multiply
    1,638,116.60x = 2,260,612.13 × 913,011.03
  4. Step 4: Simplify right side
    1,638,116.60x = 2,063,963,804,676.74
  5. Step 5: Solve for x
    x = 2,063,963,804,676.74/1,638,116.60
  6. Step 6: Final answer
    x = 1,259,961.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.