Home / 3,128,348.96-4,694,298.58-1,689,013.20

Finding the Fourth Proportional to 3,128,348.96, 4,694,298.58 and 1,689,013.20

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Solution

The fourth proportional to 3,128,348.96, 4,694,298.58 and 1,689,013.20 is: 2,534,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,348.96 : 4,694,298.58 = 1,689,013.20 : x
  2. Step 2: Convert to fraction form
    3,128,348.96/4,694,298.58 = 1,689,013.20/x
  3. Step 3: Cross multiply
    3,128,348.96x = 4,694,298.58 × 1,689,013.20
  4. Step 4: Simplify right side
    3,128,348.96x = 7,928,732,266,361.26
  5. Step 5: Solve for x
    x = 7,928,732,266,361.26/3,128,348.96
  6. Step 6: Final answer
    x = 2,534,478.21

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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.