Home / 821,649.42-1,134,065.61-534,671.28

Finding the Fourth Proportional to 821,649.42, 1,134,065.61 and 534,671.28

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Solution

The fourth proportional to 821,649.42, 1,134,065.61 and 534,671.28 is: 737,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,649.42 : 1,134,065.61 = 534,671.28 : x
  2. Step 2: Convert to fraction form
    821,649.42/1,134,065.61 = 534,671.28/x
  3. Step 3: Cross multiply
    821,649.42x = 1,134,065.61 × 534,671.28
  4. Step 4: Simplify right side
    821,649.42x = 606,352,311,302.68
  5. Step 5: Solve for x
    x = 606,352,311,302.68/821,649.42
  6. Step 6: Final answer
    x = 737,969.62

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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.