Home / 745,290.86-1,117,912.41-313,237.17

Finding the Fourth Proportional to 745,290.86, 1,117,912.41 and 313,237.17

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Solution

The fourth proportional to 745,290.86, 1,117,912.41 and 313,237.17 is: 469,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,290.86 : 1,117,912.41 = 313,237.17 : x
  2. Step 2: Convert to fraction form
    745,290.86/1,117,912.41 = 313,237.17/x
  3. Step 3: Cross multiply
    745,290.86x = 1,117,912.41 × 313,237.17
  4. Step 4: Simplify right side
    745,290.86x = 350,171,719,616.28
  5. Step 5: Solve for x
    x = 350,171,719,616.28/745,290.86
  6. Step 6: Final answer
    x = 469,845.72

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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.