Home / 1,617,689.80-2,431,200.30-1,412,403.40

Finding the Fourth Proportional to 1,617,689.80, 2,431,200.30 and 1,412,403.40

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Solution

The fourth proportional to 1,617,689.80, 2,431,200.30 and 1,412,403.40 is: 2,122,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,689.80 : 2,431,200.30 = 1,412,403.40 : x
  2. Step 2: Convert to fraction form
    1,617,689.80/2,431,200.30 = 1,412,403.40/x
  3. Step 3: Cross multiply
    1,617,689.80x = 2,431,200.30 × 1,412,403.40
  4. Step 4: Simplify right side
    1,617,689.80x = 3,433,835,569,801.02
  5. Step 5: Solve for x
    x = 3,433,835,569,801.02/1,617,689.80
  6. Step 6: Final answer
    x = 2,122,678.63

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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.