Home / 1,928,815.33-2,887,547.39-1,287,528.44

Finding the Fourth Proportional to 1,928,815.33, 2,887,547.39 and 1,287,528.44

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Solution

The fourth proportional to 1,928,815.33, 2,887,547.39 and 1,287,528.44 is: 1,927,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,815.33 : 2,887,547.39 = 1,287,528.44 : x
  2. Step 2: Convert to fraction form
    1,928,815.33/2,887,547.39 = 1,287,528.44/x
  3. Step 3: Cross multiply
    1,928,815.33x = 2,887,547.39 × 1,287,528.44
  4. Step 4: Simplify right side
    1,928,815.33x = 3,717,799,381,253.93
  5. Step 5: Solve for x
    x = 3,717,799,381,253.93/1,928,815.33
  6. Step 6: Final answer
    x = 1,927,504.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.