Home / 1,159,383.76-1,599,948.10-643,215.92

Finding the Fourth Proportional to 1,159,383.76, 1,599,948.10 and 643,215.92

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Solution

The fourth proportional to 1,159,383.76, 1,599,948.10 and 643,215.92 is: 887,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,383.76 : 1,599,948.10 = 643,215.92 : x
  2. Step 2: Convert to fraction form
    1,159,383.76/1,599,948.10 = 643,215.92/x
  3. Step 3: Cross multiply
    1,159,383.76x = 1,599,948.10 × 643,215.92
  4. Step 4: Simplify right side
    1,159,383.76x = 1,029,112,089,093.75
  5. Step 5: Solve for x
    x = 1,029,112,089,093.75/1,159,383.76
  6. Step 6: Final answer
    x = 887,637.14

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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.