Home / 780,110.80-1,170,166.20-306,552.40

Finding the Fourth Proportional to 780,110.80, 1,170,166.20 and 306,552.40

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Solution

The fourth proportional to 780,110.80, 1,170,166.20 and 306,552.40 is: 459,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,110.80 : 1,170,166.20 = 306,552.40 : x
  2. Step 2: Convert to fraction form
    780,110.80/1,170,166.20 = 306,552.40/x
  3. Step 3: Cross multiply
    780,110.80x = 1,170,166.20 × 306,552.40
  4. Step 4: Simplify right side
    780,110.80x = 358,717,257,008.88
  5. Step 5: Solve for x
    x = 358,717,257,008.88/780,110.80
  6. Step 6: Final answer
    x = 459,828.60

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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.