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Finding the Fourth Proportional to 607,953.06, 911,790.78 and 228,913.76

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Solution

The fourth proportional to 607,953.06, 911,790.78 and 228,913.76 is: 343,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,953.06 : 911,790.78 = 228,913.76 : x
  2. Step 2: Convert to fraction form
    607,953.06/911,790.78 = 228,913.76/x
  3. Step 3: Cross multiply
    607,953.06x = 911,790.78 × 228,913.76
  4. Step 4: Simplify right side
    607,953.06x = 208,721,457,204.18
  5. Step 5: Solve for x
    x = 208,721,457,204.18/607,953.06
  6. Step 6: Final answer
    x = 343,318.38

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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.