Home / 890,645.12-1,335,682.56-291,443.84

Finding the Fourth Proportional to 890,645.12, 1,335,682.56 and 291,443.84

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Solution

The fourth proportional to 890,645.12, 1,335,682.56 and 291,443.84 is: 437,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,645.12 : 1,335,682.56 = 291,443.84 : x
  2. Step 2: Convert to fraction form
    890,645.12/1,335,682.56 = 291,443.84/x
  3. Step 3: Cross multiply
    890,645.12x = 1,335,682.56 × 291,443.84
  4. Step 4: Simplify right side
    890,645.12x = 389,276,454,307.43
  5. Step 5: Solve for x
    x = 389,276,454,307.43/890,645.12
  6. Step 6: Final answer
    x = 437,072.46

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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.