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Finding the Fourth Proportional to 517,039.54, 775,569.03 and 162,045.70

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Solution

The fourth proportional to 517,039.54, 775,569.03 and 162,045.70 is: 243,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,039.54 : 775,569.03 = 162,045.70 : x
  2. Step 2: Convert to fraction form
    517,039.54/775,569.03 = 162,045.70/x
  3. Step 3: Cross multiply
    517,039.54x = 775,569.03 × 162,045.70
  4. Step 4: Simplify right side
    517,039.54x = 125,677,626,364.67
  5. Step 5: Solve for x
    x = 125,677,626,364.67/517,039.54
  6. Step 6: Final answer
    x = 243,071.60

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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.