Home / 1,330,449.72-1,836,019.88-718,602.16

Finding the Fourth Proportional to 1,330,449.72, 1,836,019.88 and 718,602.16

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Solution

The fourth proportional to 1,330,449.72, 1,836,019.88 and 718,602.16 is: 991,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,449.72 : 1,836,019.88 = 718,602.16 : x
  2. Step 2: Convert to fraction form
    1,330,449.72/1,836,019.88 = 718,602.16/x
  3. Step 3: Cross multiply
    1,330,449.72x = 1,836,019.88 × 718,602.16
  4. Step 4: Simplify right side
    1,330,449.72x = 1,319,367,851,570.94
  5. Step 5: Solve for x
    x = 1,319,367,851,570.94/1,330,449.72
  6. Step 6: Final answer
    x = 991,670.58

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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.