Home / 771,277.20-1,156,429.80-322,310.40

Finding the Fourth Proportional to 771,277.20, 1,156,429.80 and 322,310.40

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Solution

The fourth proportional to 771,277.20, 1,156,429.80 and 322,310.40 is: 483,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,277.20 : 1,156,429.80 = 322,310.40 : x
  2. Step 2: Convert to fraction form
    771,277.20/1,156,429.80 = 322,310.40/x
  3. Step 3: Cross multiply
    771,277.20x = 1,156,429.80 × 322,310.40
  4. Step 4: Simplify right side
    771,277.20x = 372,729,351,409.92
  5. Step 5: Solve for x
    x = 372,729,351,409.92/771,277.20
  6. Step 6: Final answer
    x = 483,262.50

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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.