Home / 788,771.20-1,183,156.80-539,939.20

Finding the Fourth Proportional to 788,771.20, 1,183,156.80 and 539,939.20

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Solution

The fourth proportional to 788,771.20, 1,183,156.80 and 539,939.20 is: 809,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,771.20 : 1,183,156.80 = 539,939.20 : x
  2. Step 2: Convert to fraction form
    788,771.20/1,183,156.80 = 539,939.20/x
  3. Step 3: Cross multiply
    788,771.20x = 1,183,156.80 × 539,939.20
  4. Step 4: Simplify right side
    788,771.20x = 638,832,736,066.56
  5. Step 5: Solve for x
    x = 638,832,736,066.56/788,771.20
  6. Step 6: Final answer
    x = 809,908.80

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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.