Home / 525,839.40-787,722.30-314,850.60

Finding the Fourth Proportional to 525,839.40, 787,722.30 and 314,850.60

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Solution

The fourth proportional to 525,839.40, 787,722.30 and 314,850.60 is: 471,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,839.40 : 787,722.30 = 314,850.60 : x
  2. Step 2: Convert to fraction form
    525,839.40/787,722.30 = 314,850.60/x
  3. Step 3: Cross multiply
    525,839.40x = 787,722.30 × 314,850.60
  4. Step 4: Simplify right side
    525,839.40x = 248,014,838,788.38
  5. Step 5: Solve for x
    x = 248,014,838,788.38/525,839.40
  6. Step 6: Final answer
    x = 471,655.11

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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.