Home / 1,620,746.20-2,431,539.60-861,963.72

Finding the Fourth Proportional to 1,620,746.20, 2,431,539.60 and 861,963.72

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Solution

The fourth proportional to 1,620,746.20, 2,431,539.60 and 861,963.72 is: 1,293,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,746.20 : 2,431,539.60 = 861,963.72 : x
  2. Step 2: Convert to fraction form
    1,620,746.20/2,431,539.60 = 861,963.72/x
  3. Step 3: Cross multiply
    1,620,746.20x = 2,431,539.60 × 861,963.72
  4. Step 4: Simplify right side
    1,620,746.20x = 2,095,898,918,943.31
  5. Step 5: Solve for x
    x = 2,095,898,918,943.31/1,620,746.20
  6. Step 6: Final answer
    x = 1,293,169.11

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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.