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Finding the Fourth Proportional to 692,992.81, 956,319.97 and 387,073.54

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Solution

The fourth proportional to 692,992.81, 956,319.97 and 387,073.54 is: 534,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,992.81 : 956,319.97 = 387,073.54 : x
  2. Step 2: Convert to fraction form
    692,992.81/956,319.97 = 387,073.54/x
  3. Step 3: Cross multiply
    692,992.81x = 956,319.97 × 387,073.54
  4. Step 4: Simplify right side
    692,992.81x = 370,166,156,160.59
  5. Step 5: Solve for x
    x = 370,166,156,160.59/692,992.81
  6. Step 6: Final answer
    x = 534,155.84

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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.