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Finding the Fourth Proportional to 662,557.76, 993,989.75 and 207,123.21

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Solution

The fourth proportional to 662,557.76, 993,989.75 and 207,123.21 is: 310,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,557.76 : 993,989.75 = 207,123.21 : x
  2. Step 2: Convert to fraction form
    662,557.76/993,989.75 = 207,123.21/x
  3. Step 3: Cross multiply
    662,557.76x = 993,989.75 × 207,123.21
  4. Step 4: Simplify right side
    662,557.76x = 205,878,346,691.48
  5. Step 5: Solve for x
    x = 205,878,346,691.48/662,557.76
  6. Step 6: Final answer
    x = 310,732.68

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1.5x scale

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.