Home / 1,188,881.87-1,780,577.42-714,522.11

Finding the Fourth Proportional to 1,188,881.87, 1,780,577.42 and 714,522.11

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Solution

The fourth proportional to 1,188,881.87, 1,780,577.42 and 714,522.11 is: 1,070,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,881.87 : 1,780,577.42 = 714,522.11 : x
  2. Step 2: Convert to fraction form
    1,188,881.87/1,780,577.42 = 714,522.11/x
  3. Step 3: Cross multiply
    1,188,881.87x = 1,780,577.42 × 714,522.11
  4. Step 4: Simplify right side
    1,188,881.87x = 1,272,261,922,681.26
  5. Step 5: Solve for x
    x = 1,272,261,922,681.26/1,188,881.87
  6. Step 6: Final answer
    x = 1,070,133.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.