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Finding the Fourth Proportional to 620,575.48, 930,844.69 and 171,323.76

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Solution

The fourth proportional to 620,575.48, 930,844.69 and 171,323.76 is: 256,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,575.48 : 930,844.69 = 171,323.76 : x
  2. Step 2: Convert to fraction form
    620,575.48/930,844.69 = 171,323.76/x
  3. Step 3: Cross multiply
    620,575.48x = 930,844.69 × 171,323.76
  4. Step 4: Simplify right side
    620,575.48x = 159,475,816,292.89
  5. Step 5: Solve for x
    x = 159,475,816,292.89/620,575.48
  6. Step 6: Final answer
    x = 256,980.53

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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.