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Finding the Fourth Proportional to 723,338.47, 998,465.42 and 493,731.41

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Solution

The fourth proportional to 723,338.47, 998,465.42 and 493,731.41 is: 681,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,338.47 : 998,465.42 = 493,731.41 : x
  2. Step 2: Convert to fraction form
    723,338.47/998,465.42 = 493,731.41/x
  3. Step 3: Cross multiply
    723,338.47x = 998,465.42 × 493,731.41
  4. Step 4: Simplify right side
    723,338.47x = 492,973,737,184.19
  5. Step 5: Solve for x
    x = 492,973,737,184.19/723,338.47
  6. Step 6: Final answer
    x = 681,525.68

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1.5x scale

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.