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Finding the Fourth Proportional to 521,825.94, 720,109.32 and 292,380.48

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Solution

The fourth proportional to 521,825.94, 720,109.32 and 292,380.48 is: 403,479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,825.94 : 720,109.32 = 292,380.48 : x
  2. Step 2: Convert to fraction form
    521,825.94/720,109.32 = 292,380.48/x
  3. Step 3: Cross multiply
    521,825.94x = 720,109.32 × 292,380.48
  4. Step 4: Simplify right side
    521,825.94x = 210,545,908,634.07
  5. Step 5: Solve for x
    x = 210,545,908,634.07/521,825.94
  6. Step 6: Final answer
    x = 403,479.19

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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.