Home / 1,638,262.40-2,260,812.60-913,156.09

Finding the Fourth Proportional to 1,638,262.40, 2,260,812.60 and 913,156.09

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Solution

The fourth proportional to 1,638,262.40, 2,260,812.60 and 913,156.09 is: 1,260,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,262.40 : 2,260,812.60 = 913,156.09 : x
  2. Step 2: Convert to fraction form
    1,638,262.40/2,260,812.60 = 913,156.09/x
  3. Step 3: Cross multiply
    1,638,262.40x = 2,260,812.60 × 913,156.09
  4. Step 4: Simplify right side
    1,638,262.40x = 2,064,474,788,386.70
  5. Step 5: Solve for x
    x = 2,064,474,788,386.70/1,638,262.40
  6. Step 6: Final answer
    x = 1,260,161.25

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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.