Home / 878,193.28-1,317,293.10-213,345.28

Finding the Fourth Proportional to 878,193.28, 1,317,293.10 and 213,345.28

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Solution

The fourth proportional to 878,193.28, 1,317,293.10 and 213,345.28 is: 320,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,193.28 : 1,317,293.10 = 213,345.28 : x
  2. Step 2: Convert to fraction form
    878,193.28/1,317,293.10 = 213,345.28/x
  3. Step 3: Cross multiply
    878,193.28x = 1,317,293.10 × 213,345.28
  4. Step 4: Simplify right side
    878,193.28x = 281,038,265,261.57
  5. Step 5: Solve for x
    x = 281,038,265,261.57/878,193.28
  6. Step 6: Final answer
    x = 320,018.69

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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.