Home / 776,509.70-1,164,930.15-439,708.10

Finding the Fourth Proportional to 776,509.70, 1,164,930.15 and 439,708.10

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Solution

The fourth proportional to 776,509.70, 1,164,930.15 and 439,708.10 is: 659,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,509.70 : 1,164,930.15 = 439,708.10 : x
  2. Step 2: Convert to fraction form
    776,509.70/1,164,930.15 = 439,708.10/x
  3. Step 3: Cross multiply
    776,509.70x = 1,164,930.15 × 439,708.10
  4. Step 4: Simplify right side
    776,509.70x = 512,229,222,889.22
  5. Step 5: Solve for x
    x = 512,229,222,889.22/776,509.70
  6. Step 6: Final answer
    x = 659,655.92

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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.