Home / 517,320.07-713,839.03-287,823.17

Finding the Fourth Proportional to 517,320.07, 713,839.03 and 287,823.17

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Solution

The fourth proportional to 517,320.07, 713,839.03 and 287,823.17 is: 397,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,320.07 : 713,839.03 = 287,823.17 : x
  2. Step 2: Convert to fraction form
    517,320.07/713,839.03 = 287,823.17/x
  3. Step 3: Cross multiply
    517,320.07x = 713,839.03 × 287,823.17
  4. Step 4: Simplify right side
    517,320.07x = 205,459,413,549.37
  5. Step 5: Solve for x
    x = 205,459,413,549.37/517,320.07
  6. Step 6: Final answer
    x = 397,161.11

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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.