Home / 1,142,921.77-1,714,419-423,443.66

Finding the Fourth Proportional to 1,142,921.77, 1,714,419 and 423,443.66

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Solution

The fourth proportional to 1,142,921.77, 1,714,419 and 423,443.66 is: 635,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,921.77 : 1,714,419 = 423,443.66 : x
  2. Step 2: Convert to fraction form
    1,142,921.77/1,714,419 = 423,443.66/x
  3. Step 3: Cross multiply
    1,142,921.77x = 1,714,419 × 423,443.66
  4. Step 4: Simplify right side
    1,142,921.77x = 725,959,847,561.45
  5. Step 5: Solve for x
    x = 725,959,847,561.45/1,142,921.77
  6. Step 6: Final answer
    x = 635,178.95

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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.