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Finding the Fourth Proportional to 521,993.46, 720,401.54 and 292,589.72

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Solution

The fourth proportional to 521,993.46, 720,401.54 and 292,589.72 is: 403,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,993.46 : 720,401.54 = 292,589.72 : x
  2. Step 2: Convert to fraction form
    521,993.46/720,401.54 = 292,589.72/x
  3. Step 3: Cross multiply
    521,993.46x = 720,401.54 × 292,589.72
  4. Step 4: Simplify right side
    521,993.46x = 210,782,084,876.17
  5. Step 5: Solve for x
    x = 210,782,084,876.17/521,993.46
  6. Step 6: Final answer
    x = 403,802.16

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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.