Home / 1,159,705.71-1,600,481.54-643,557.31

Finding the Fourth Proportional to 1,159,705.71, 1,600,481.54 and 643,557.31

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Solution

The fourth proportional to 1,159,705.71, 1,600,481.54 and 643,557.31 is: 888,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,705.71 : 1,600,481.54 = 643,557.31 : x
  2. Step 2: Convert to fraction form
    1,159,705.71/1,600,481.54 = 643,557.31/x
  3. Step 3: Cross multiply
    1,159,705.71x = 1,600,481.54 × 643,557.31
  4. Step 4: Simplify right side
    1,159,705.71x = 1,030,001,598,196.55
  5. Step 5: Solve for x
    x = 1,030,001,598,196.55/1,159,705.71
  6. Step 6: Final answer
    x = 888,157.73

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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.