Home / 831,628.80-1,247,443.20-453,715.20

Finding the Fourth Proportional to 831,628.80, 1,247,443.20 and 453,715.20

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Solution

The fourth proportional to 831,628.80, 1,247,443.20 and 453,715.20 is: 680,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,628.80 : 1,247,443.20 = 453,715.20 : x
  2. Step 2: Convert to fraction form
    831,628.80/1,247,443.20 = 453,715.20/x
  3. Step 3: Cross multiply
    831,628.80x = 1,247,443.20 × 453,715.20
  4. Step 4: Simplify right side
    831,628.80x = 565,983,940,976.64
  5. Step 5: Solve for x
    x = 565,983,940,976.64/831,628.80
  6. Step 6: Final answer
    x = 680,572.80

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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.