Home / 1,128,209.36-1,556,919.83-611,961.95

Finding the Fourth Proportional to 1,128,209.36, 1,556,919.83 and 611,961.95

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Solution

The fourth proportional to 1,128,209.36, 1,556,919.83 and 611,961.95 is: 844,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,209.36 : 1,556,919.83 = 611,961.95 : x
  2. Step 2: Convert to fraction form
    1,128,209.36/1,556,919.83 = 611,961.95/x
  3. Step 3: Cross multiply
    1,128,209.36x = 1,556,919.83 × 611,961.95
  4. Step 4: Simplify right side
    1,128,209.36x = 952,775,700,582.67
  5. Step 5: Solve for x
    x = 952,775,700,582.67/1,128,209.36
  6. Step 6: Final answer
    x = 844,502.57

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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.