Home / 781,444.86-1,171,370.25-307,938.30

Finding the Fourth Proportional to 781,444.86, 1,171,370.25 and 307,938.30

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Solution

The fourth proportional to 781,444.86, 1,171,370.25 and 307,938.30 is: 461,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,444.86 : 1,171,370.25 = 307,938.30 : x
  2. Step 2: Convert to fraction form
    781,444.86/1,171,370.25 = 307,938.30/x
  3. Step 3: Cross multiply
    781,444.86x = 1,171,370.25 × 307,938.30
  4. Step 4: Simplify right side
    781,444.86x = 360,709,763,455.58
  5. Step 5: Solve for x
    x = 360,709,763,455.58/781,444.86
  6. Step 6: Final answer
    x = 461,593.37

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Double scale
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1.5x scale

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.