Home / 490,862.20-736,293.30-402,215.80

Finding the Fourth Proportional to 490,862.20, 736,293.30 and 402,215.80

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Solution

The fourth proportional to 490,862.20, 736,293.30 and 402,215.80 is: 603,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,862.20 : 736,293.30 = 402,215.80 : x
  2. Step 2: Convert to fraction form
    490,862.20/736,293.30 = 402,215.80/x
  3. Step 3: Cross multiply
    490,862.20x = 736,293.30 × 402,215.80
  4. Step 4: Simplify right side
    490,862.20x = 296,148,798,694.14
  5. Step 5: Solve for x
    x = 296,148,798,694.14/490,862.20
  6. Step 6: Final answer
    x = 603,323.70

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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.