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Finding the Fourth Proportional to 533,688.76, 736,476.36 and 315,908.66

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Solution

The fourth proportional to 533,688.76, 736,476.36 and 315,908.66 is: 435,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,688.76 : 736,476.36 = 315,908.66 : x
  2. Step 2: Convert to fraction form
    533,688.76/736,476.36 = 315,908.66/x
  3. Step 3: Cross multiply
    533,688.76x = 736,476.36 × 315,908.66
  4. Step 4: Simplify right side
    533,688.76x = 232,659,262,114.53
  5. Step 5: Solve for x
    x = 232,659,262,114.53/533,688.76
  6. Step 6: Final answer
    x = 435,945.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.