Home / 2,197,038.40-3,291,410.40-1,128,443.20

Finding the Fourth Proportional to 2,197,038.40, 3,291,410.40 and 1,128,443.20

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Solution

The fourth proportional to 2,197,038.40, 3,291,410.40 and 1,128,443.20 is: 1,690,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197,038.40 : 3,291,410.40 = 1,128,443.20 : x
  2. Step 2: Convert to fraction form
    2,197,038.40/3,291,410.40 = 1,128,443.20/x
  3. Step 3: Cross multiply
    2,197,038.40x = 3,291,410.40 × 1,128,443.20
  4. Step 4: Simplify right side
    2,197,038.40x = 3,714,169,684,289.28
  5. Step 5: Solve for x
    x = 3,714,169,684,289.28/2,197,038.40
  6. Step 6: Final answer
    x = 1,690,534.71

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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.