Home / 979,875.85-1,469,813.09-306,014.90

Finding the Fourth Proportional to 979,875.85, 1,469,813.09 and 306,014.90

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Solution

The fourth proportional to 979,875.85, 1,469,813.09 and 306,014.90 is: 459,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,875.85 : 1,469,813.09 = 306,014.90 : x
  2. Step 2: Convert to fraction form
    979,875.85/1,469,813.09 = 306,014.90/x
  3. Step 3: Cross multiply
    979,875.85x = 1,469,813.09 × 306,014.90
  4. Step 4: Simplify right side
    979,875.85x = 449,784,710,194.61
  5. Step 5: Solve for x
    x = 449,784,710,194.61/979,875.85
  6. Step 6: Final answer
    x = 459,022.14

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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.