Home / 1,138,168.98-1,571,405.40-730,446.57

Finding the Fourth Proportional to 1,138,168.98, 1,571,405.40 and 730,446.57

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Solution

The fourth proportional to 1,138,168.98, 1,571,405.40 and 730,446.57 is: 1,008,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,168.98 : 1,571,405.40 = 730,446.57 : x
  2. Step 2: Convert to fraction form
    1,138,168.98/1,571,405.40 = 730,446.57/x
  3. Step 3: Cross multiply
    1,138,168.98x = 1,571,405.40 × 730,446.57
  4. Step 4: Simplify right side
    1,138,168.98x = 1,147,827,684,509.48
  5. Step 5: Solve for x
    x = 1,147,827,684,509.48/1,138,168.98
  6. Step 6: Final answer
    x = 1,008,486.18

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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.