Home / 513,906.48-709,171.20-287,552.16

Finding the Fourth Proportional to 513,906.48, 709,171.20 and 287,552.16

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Solution

The fourth proportional to 513,906.48, 709,171.20 and 287,552.16 is: 396,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,906.48 : 709,171.20 = 287,552.16 : x
  2. Step 2: Convert to fraction form
    513,906.48/709,171.20 = 287,552.16/x
  3. Step 3: Cross multiply
    513,906.48x = 709,171.20 × 287,552.16
  4. Step 4: Simplify right side
    513,906.48x = 203,923,710,369.79
  5. Step 5: Solve for x
    x = 203,923,710,369.79/513,906.48
  6. Step 6: Final answer
    x = 396,810.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.