Home / 814,865.20-1,223,219.40-482,628.40

Finding the Fourth Proportional to 814,865.20, 1,223,219.40 and 482,628.40

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Solution

The fourth proportional to 814,865.20, 1,223,219.40 and 482,628.40 is: 724,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,865.20 : 1,223,219.40 = 482,628.40 : x
  2. Step 2: Convert to fraction form
    814,865.20/1,223,219.40 = 482,628.40/x
  3. Step 3: Cross multiply
    814,865.20x = 1,223,219.40 × 482,628.40
  4. Step 4: Simplify right side
    814,865.20x = 590,360,421,870.96
  5. Step 5: Solve for x
    x = 590,360,421,870.96/814,865.20
  6. Step 6: Final answer
    x = 724,488.45

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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.