Home / 788,811.20-1,183,216.80-490,212.80

Finding the Fourth Proportional to 788,811.20, 1,183,216.80 and 490,212.80

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Solution

The fourth proportional to 788,811.20, 1,183,216.80 and 490,212.80 is: 735,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,811.20 : 1,183,216.80 = 490,212.80 : x
  2. Step 2: Convert to fraction form
    788,811.20/1,183,216.80 = 490,212.80/x
  3. Step 3: Cross multiply
    788,811.20x = 1,183,216.80 × 490,212.80
  4. Step 4: Simplify right side
    788,811.20x = 580,028,020,535.04
  5. Step 5: Solve for x
    x = 580,028,020,535.04/788,811.20
  6. Step 6: Final answer
    x = 735,319.20

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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.