Home / 490,440.20-735,113.55-190,821.20

Finding the Fourth Proportional to 490,440.20, 735,113.55 and 190,821.20

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Solution

The fourth proportional to 490,440.20, 735,113.55 and 190,821.20 is: 286,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,440.20 : 735,113.55 = 190,821.20 : x
  2. Step 2: Convert to fraction form
    490,440.20/735,113.55 = 190,821.20/x
  3. Step 3: Cross multiply
    490,440.20x = 735,113.55 × 190,821.20
  4. Step 4: Simplify right side
    490,440.20x = 140,275,249,747.26
  5. Step 5: Solve for x
    x = 140,275,249,747.26/490,440.20
  6. Step 6: Final answer
    x = 286,019.07

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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.