Home / 1,159,608.25-1,600,205.39-643,356.64

Finding the Fourth Proportional to 1,159,608.25, 1,600,205.39 and 643,356.64

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Solution

The fourth proportional to 1,159,608.25, 1,600,205.39 and 643,356.64 is: 887,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,608.25 : 1,600,205.39 = 643,356.64 : x
  2. Step 2: Convert to fraction form
    1,159,608.25/1,600,205.39 = 643,356.64/x
  3. Step 3: Cross multiply
    1,159,608.25x = 1,600,205.39 × 643,356.64
  4. Step 4: Simplify right side
    1,159,608.25x = 1,029,502,764,216.35
  5. Step 5: Solve for x
    x = 1,029,502,764,216.35/1,159,608.25
  6. Step 6: Final answer
    x = 887,802.21

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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.