Home / 913,107.54-1,369,848.12-313,990.86

Finding the Fourth Proportional to 913,107.54, 1,369,848.12 and 313,990.86

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Solution

The fourth proportional to 913,107.54, 1,369,848.12 and 313,990.86 is: 471,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,107.54 : 1,369,848.12 = 313,990.86 : x
  2. Step 2: Convert to fraction form
    913,107.54/1,369,848.12 = 313,990.86/x
  3. Step 3: Cross multiply
    913,107.54x = 1,369,848.12 × 313,990.86
  4. Step 4: Simplify right side
    913,107.54x = 430,119,789,268.18
  5. Step 5: Solve for x
    x = 430,119,789,268.18/913,107.54
  6. Step 6: Final answer
    x = 471,050.53

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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.