Home / 770,899.20-1,156,061.12-265,318.72

Finding the Fourth Proportional to 770,899.20, 1,156,061.12 and 265,318.72

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Solution

The fourth proportional to 770,899.20, 1,156,061.12 and 265,318.72 is: 397,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,899.20 : 1,156,061.12 = 265,318.72 : x
  2. Step 2: Convert to fraction form
    770,899.20/1,156,061.12 = 265,318.72/x
  3. Step 3: Cross multiply
    770,899.20x = 1,156,061.12 × 265,318.72
  4. Step 4: Simplify right side
    770,899.20x = 306,724,656,600.17
  5. Step 5: Solve for x
    x = 306,724,656,600.17/770,899.20
  6. Step 6: Final answer
    x = 397,879.07

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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.