Home / 1,489,284.40-2,055,926.30-916,815.28

Finding the Fourth Proportional to 1,489,284.40, 2,055,926.30 and 916,815.28

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Solution

The fourth proportional to 1,489,284.40, 2,055,926.30 and 916,815.28 is: 1,265,644.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,284.40 : 2,055,926.30 = 916,815.28 : x
  2. Step 2: Convert to fraction form
    1,489,284.40/2,055,926.30 = 916,815.28/x
  3. Step 3: Cross multiply
    1,489,284.40x = 2,055,926.30 × 916,815.28
  4. Step 4: Simplify right side
    1,489,284.40x = 1,884,904,646,393.86
  5. Step 5: Solve for x
    x = 1,884,904,646,393.86/1,489,284.40
  6. Step 6: Final answer
    x = 1,265,644.52

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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.