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Finding the Fourth Proportional to 620,904.76, 930,578.03 and 265,500.86

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Solution

The fourth proportional to 620,904.76, 930,578.03 and 265,500.86 is: 397,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,904.76 : 930,578.03 = 265,500.86 : x
  2. Step 2: Convert to fraction form
    620,904.76/930,578.03 = 265,500.86/x
  3. Step 3: Cross multiply
    620,904.76x = 930,578.03 × 265,500.86
  4. Step 4: Simplify right side
    620,904.76x = 247,069,265,934.60
  5. Step 5: Solve for x
    x = 247,069,265,934.60/620,904.76
  6. Step 6: Final answer
    x = 397,918.14

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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.