Home / 718,261.28-1,077,709.30-376,623.12

Finding the Fourth Proportional to 718,261.28, 1,077,709.30 and 376,623.12

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Solution

The fourth proportional to 718,261.28, 1,077,709.30 and 376,623.12 is: 565,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,261.28 : 1,077,709.30 = 376,623.12 : x
  2. Step 2: Convert to fraction form
    718,261.28/1,077,709.30 = 376,623.12/x
  3. Step 3: Cross multiply
    718,261.28x = 1,077,709.30 × 376,623.12
  4. Step 4: Simplify right side
    718,261.28x = 405,890,239,019.02
  5. Step 5: Solve for x
    x = 405,890,239,019.02/718,261.28
  6. Step 6: Final answer
    x = 565,101.10

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1.5x scale

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.