Home / 918,987.66-1,268,015.58-536,940.63

Finding the Fourth Proportional to 918,987.66, 1,268,015.58 and 536,940.63

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Solution

The fourth proportional to 918,987.66, 1,268,015.58 and 536,940.63 is: 740,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,987.66 : 1,268,015.58 = 536,940.63 : x
  2. Step 2: Convert to fraction form
    918,987.66/1,268,015.58 = 536,940.63/x
  3. Step 3: Cross multiply
    918,987.66x = 1,268,015.58 × 536,940.63
  4. Step 4: Simplify right side
    918,987.66x = 680,849,084,375.02
  5. Step 5: Solve for x
    x = 680,849,084,375.02/918,987.66
  6. Step 6: Final answer
    x = 740,868.58

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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.