Home / 1,221,040.95-1,685,140.01-677,351.91

Finding the Fourth Proportional to 1,221,040.95, 1,685,140.01 and 677,351.91

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Solution

The fourth proportional to 1,221,040.95, 1,685,140.01 and 677,351.91 is: 934,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,040.95 : 1,685,140.01 = 677,351.91 : x
  2. Step 2: Convert to fraction form
    1,221,040.95/1,685,140.01 = 677,351.91/x
  3. Step 3: Cross multiply
    1,221,040.95x = 1,685,140.01 × 677,351.91
  4. Step 4: Simplify right side
    1,221,040.95x = 1,141,432,801,004.16
  5. Step 5: Solve for x
    x = 1,141,432,801,004.16/1,221,040.95
  6. Step 6: Final answer
    x = 934,803.05

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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.