Home / 528,389.94-791,364.75-317,563.38

Finding the Fourth Proportional to 528,389.94, 791,364.75 and 317,563.38

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Solution

The fourth proportional to 528,389.94, 791,364.75 and 317,563.38 is: 475,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,389.94 : 791,364.75 = 317,563.38 : x
  2. Step 2: Convert to fraction form
    528,389.94/791,364.75 = 317,563.38/x
  3. Step 3: Cross multiply
    528,389.94x = 791,364.75 × 317,563.38
  4. Step 4: Simplify right side
    528,389.94x = 251,308,464,822.86
  5. Step 5: Solve for x
    x = 251,308,464,822.86/528,389.94
  6. Step 6: Final answer
    x = 475,611.75

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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.