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Finding the Fourth Proportional to 607,386.28, 911,103.90 and 228,267.40

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Solution

The fourth proportional to 607,386.28, 911,103.90 and 228,267.40 is: 342,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,386.28 : 911,103.90 = 228,267.40 : x
  2. Step 2: Convert to fraction form
    607,386.28/911,103.90 = 228,267.40/x
  3. Step 3: Cross multiply
    607,386.28x = 911,103.90 × 228,267.40
  4. Step 4: Simplify right side
    607,386.28x = 207,975,318,382.86
  5. Step 5: Solve for x
    x = 207,975,318,382.86/607,386.28
  6. Step 6: Final answer
    x = 342,410.30

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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.