Home / 1,509,662.64-2,081,080.44-999,479.28

Finding the Fourth Proportional to 1,509,662.64, 2,081,080.44 and 999,479.28

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Solution

The fourth proportional to 1,509,662.64, 2,081,080.44 and 999,479.28 is: 1,377,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,662.64 : 2,081,080.44 = 999,479.28 : x
  2. Step 2: Convert to fraction form
    1,509,662.64/2,081,080.44 = 999,479.28/x
  3. Step 3: Cross multiply
    1,509,662.64x = 2,081,080.44 × 999,479.28
  4. Step 4: Simplify right side
    1,509,662.64x = 2,079,996,779,793.28
  5. Step 5: Solve for x
    x = 2,079,996,779,793.28/1,509,662.64
  6. Step 6: Final answer
    x = 1,377,789.13

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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.