Home / 1,771,256.70-2,656,885.05-1,239,378.30

Finding the Fourth Proportional to 1,771,256.70, 2,656,885.05 and 1,239,378.30

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Solution

The fourth proportional to 1,771,256.70, 2,656,885.05 and 1,239,378.30 is: 1,859,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771,256.70 : 2,656,885.05 = 1,239,378.30 : x
  2. Step 2: Convert to fraction form
    1,771,256.70/2,656,885.05 = 1,239,378.30/x
  3. Step 3: Cross multiply
    1,771,256.70x = 2,656,885.05 × 1,239,378.30
  4. Step 4: Simplify right side
    1,771,256.70x = 3,292,885,676,564.42
  5. Step 5: Solve for x
    x = 3,292,885,676,564.42/1,771,256.70
  6. Step 6: Final answer
    x = 1,859,067.45

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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.