Home / 780,310.60-1,170,465.87-219,345.10

Finding the Fourth Proportional to 780,310.60, 1,170,465.87 and 219,345.10

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Solution

The fourth proportional to 780,310.60, 1,170,465.87 and 219,345.10 is: 329,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,310.60 : 1,170,465.87 = 219,345.10 : x
  2. Step 2: Convert to fraction form
    780,310.60/1,170,465.87 = 219,345.10/x
  3. Step 3: Cross multiply
    780,310.60x = 1,170,465.87 × 219,345.10
  4. Step 4: Simplify right side
    780,310.60x = 256,735,953,301.74
  5. Step 5: Solve for x
    x = 256,735,953,301.74/780,310.60
  6. Step 6: Final answer
    x = 329,017.64

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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.