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Finding the Fourth Proportional to 517,015.27, 713,463.94 and 287,566.07

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Solution

The fourth proportional to 517,015.27, 713,463.94 and 287,566.07 is: 396,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,015.27 : 713,463.94 = 287,566.07 : x
  2. Step 2: Convert to fraction form
    517,015.27/713,463.94 = 287,566.07/x
  3. Step 3: Cross multiply
    517,015.27x = 713,463.94 × 287,566.07
  4. Step 4: Simplify right side
    517,015.27x = 205,168,021,312.52
  5. Step 5: Solve for x
    x = 205,168,021,312.52/517,015.27
  6. Step 6: Final answer
    x = 396,831.65

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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.