Home / 912,605.31-1,367,942.63-343,740.26

Finding the Fourth Proportional to 912,605.31, 1,367,942.63 and 343,740.26

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Solution

The fourth proportional to 912,605.31, 1,367,942.63 and 343,740.26 is: 515,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,605.31 : 1,367,942.63 = 343,740.26 : x
  2. Step 2: Convert to fraction form
    912,605.31/1,367,942.63 = 343,740.26/x
  3. Step 3: Cross multiply
    912,605.31x = 1,367,942.63 × 343,740.26
  4. Step 4: Simplify right side
    912,605.31x = 470,216,946,742.87
  5. Step 5: Solve for x
    x = 470,216,946,742.87/912,605.31
  6. Step 6: Final answer
    x = 515,246.78

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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.