Home / 1,919,402.19-2,878,808.04-640,031.90

Finding the Fourth Proportional to 1,919,402.19, 2,878,808.04 and 640,031.90

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Solution

The fourth proportional to 1,919,402.19, 2,878,808.04 and 640,031.90 is: 959,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,402.19 : 2,878,808.04 = 640,031.90 : x
  2. Step 2: Convert to fraction form
    1,919,402.19/2,878,808.04 = 640,031.90/x
  3. Step 3: Cross multiply
    1,919,402.19x = 2,878,808.04 × 640,031.90
  4. Step 4: Simplify right side
    1,919,402.19x = 1,842,528,965,182.44
  5. Step 5: Solve for x
    x = 1,842,528,965,182.44/1,919,402.19
  6. Step 6: Final answer
    x = 959,949.39

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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.