Home / 1,166,577.61-1,609,972.92-643,390.56

Finding the Fourth Proportional to 1,166,577.61, 1,609,972.92 and 643,390.56

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Solution

The fourth proportional to 1,166,577.61, 1,609,972.92 and 643,390.56 is: 887,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,577.61 : 1,609,972.92 = 643,390.56 : x
  2. Step 2: Convert to fraction form
    1,166,577.61/1,609,972.92 = 643,390.56/x
  3. Step 3: Cross multiply
    1,166,577.61x = 1,609,972.92 × 643,390.56
  4. Step 4: Simplify right side
    1,166,577.61x = 1,035,841,371,742.00
  5. Step 5: Solve for x
    x = 1,035,841,371,742.00/1,166,577.61
  6. Step 6: Final answer
    x = 887,931.81

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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.