Home / 1,985,790.78-2,740,304.59-1,102,685.18

Finding the Fourth Proportional to 1,985,790.78, 2,740,304.59 and 1,102,685.18

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Solution

The fourth proportional to 1,985,790.78, 2,740,304.59 and 1,102,685.18 is: 1,521,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,790.78 : 2,740,304.59 = 1,102,685.18 : x
  2. Step 2: Convert to fraction form
    1,985,790.78/2,740,304.59 = 1,102,685.18/x
  3. Step 3: Cross multiply
    1,985,790.78x = 2,740,304.59 × 1,102,685.18
  4. Step 4: Simplify right side
    1,985,790.78x = 3,021,693,243,620.74
  5. Step 5: Solve for x
    x = 3,021,693,243,620.74/1,985,790.78
  6. Step 6: Final answer
    x = 1,521,657.40

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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.