Home / 1,107,698.93-1,528,626.66-642,643.10

Finding the Fourth Proportional to 1,107,698.93, 1,528,626.66 and 642,643.10

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Solution

The fourth proportional to 1,107,698.93, 1,528,626.66 and 642,643.10 is: 886,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,698.93 : 1,528,626.66 = 642,643.10 : x
  2. Step 2: Convert to fraction form
    1,107,698.93/1,528,626.66 = 642,643.10/x
  3. Step 3: Cross multiply
    1,107,698.93x = 1,528,626.66 × 642,643.10
  4. Step 4: Simplify right side
    1,107,698.93x = 982,361,375,525.05
  5. Step 5: Solve for x
    x = 982,361,375,525.05/1,107,698.93
  6. Step 6: Final answer
    x = 886,848.72

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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.