Home / 780,336.60-1,170,029.70-306,454.20

Finding the Fourth Proportional to 780,336.60, 1,170,029.70 and 306,454.20

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Solution

The fourth proportional to 780,336.60, 1,170,029.70 and 306,454.20 is: 459,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,336.60 : 1,170,029.70 = 306,454.20 : x
  2. Step 2: Convert to fraction form
    780,336.60/1,170,029.70 = 306,454.20/x
  3. Step 3: Cross multiply
    780,336.60x = 1,170,029.70 × 306,454.20
  4. Step 4: Simplify right side
    780,336.60x = 358,560,515,689.74
  5. Step 5: Solve for x
    x = 358,560,515,689.74/780,336.60
  6. Step 6: Final answer
    x = 459,494.68

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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.