Home / 709,820.11-979,664.22-451,427.66

Finding the Fourth Proportional to 709,820.11, 979,664.22 and 451,427.66

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Solution

The fourth proportional to 709,820.11, 979,664.22 and 451,427.66 is: 623,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,820.11 : 979,664.22 = 451,427.66 : x
  2. Step 2: Convert to fraction form
    709,820.11/979,664.22 = 451,427.66/x
  3. Step 3: Cross multiply
    709,820.11x = 979,664.22 × 451,427.66
  4. Step 4: Simplify right side
    709,820.11x = 442,247,530,706.36
  5. Step 5: Solve for x
    x = 442,247,530,706.36/709,820.11
  6. Step 6: Final answer
    x = 623,041.70

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1.5x scale

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.