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Finding the Fourth Proportional to 692,992.30, 956,319.28 and 387,073.03

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Solution

The fourth proportional to 692,992.30, 956,319.28 and 387,073.03 is: 534,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,992.30 : 956,319.28 = 387,073.03 : x
  2. Step 2: Convert to fraction form
    692,992.30/956,319.28 = 387,073.03/x
  3. Step 3: Cross multiply
    692,992.30x = 956,319.28 × 387,073.03
  4. Step 4: Simplify right side
    692,992.30x = 370,165,401,357.02
  5. Step 5: Solve for x
    x = 370,165,401,357.02/692,992.30
  6. Step 6: Final answer
    x = 534,155.14

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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.