Home / 1,603,398.45-2,212,689.38-878,291.31

Finding the Fourth Proportional to 1,603,398.45, 2,212,689.38 and 878,291.31

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Solution

The fourth proportional to 1,603,398.45, 2,212,689.38 and 878,291.31 is: 1,212,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,398.45 : 2,212,689.38 = 878,291.31 : x
  2. Step 2: Convert to fraction form
    1,603,398.45/2,212,689.38 = 878,291.31/x
  3. Step 3: Cross multiply
    1,603,398.45x = 2,212,689.38 × 878,291.31
  4. Step 4: Simplify right side
    1,603,398.45x = 1,943,385,849,791.83
  5. Step 5: Solve for x
    x = 1,943,385,849,791.83/1,603,398.45
  6. Step 6: Final answer
    x = 1,212,041.74

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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.