Home / 2,078,274.40-3,117,411.60-1,918,842.10

Finding the Fourth Proportional to 2,078,274.40, 3,117,411.60 and 1,918,842.10

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Solution

The fourth proportional to 2,078,274.40, 3,117,411.60 and 1,918,842.10 is: 2,878,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,274.40 : 3,117,411.60 = 1,918,842.10 : x
  2. Step 2: Convert to fraction form
    2,078,274.40/3,117,411.60 = 1,918,842.10/x
  3. Step 3: Cross multiply
    2,078,274.40x = 3,117,411.60 × 1,918,842.10
  4. Step 4: Simplify right side
    2,078,274.40x = 5,981,820,621,108.36
  5. Step 5: Solve for x
    x = 5,981,820,621,108.36/2,078,274.40
  6. Step 6: Final answer
    x = 2,878,263.15

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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.