Home / 490,821.60-736,232.40-291,367.20

Finding the Fourth Proportional to 490,821.60, 736,232.40 and 291,367.20

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Solution

The fourth proportional to 490,821.60, 736,232.40 and 291,367.20 is: 437,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,821.60 : 736,232.40 = 291,367.20 : x
  2. Step 2: Convert to fraction form
    490,821.60/736,232.40 = 291,367.20/x
  3. Step 3: Cross multiply
    490,821.60x = 736,232.40 × 291,367.20
  4. Step 4: Simplify right side
    490,821.60x = 214,513,972,937.28
  5. Step 5: Solve for x
    x = 214,513,972,937.28/490,821.60
  6. Step 6: Final answer
    x = 437,050.80

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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.