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Finding the Fourth Proportional to 521,859.47, 720,168.83 and 292,417.25

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Solution

The fourth proportional to 521,859.47, 720,168.83 and 292,417.25 is: 403,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,859.47 : 720,168.83 = 292,417.25 : x
  2. Step 2: Convert to fraction form
    521,859.47/720,168.83 = 292,417.25/x
  3. Step 3: Cross multiply
    521,859.47x = 720,168.83 × 292,417.25
  4. Step 4: Simplify right side
    521,859.47x = 210,589,783,741.39
  5. Step 5: Solve for x
    x = 210,589,783,741.39/521,859.47
  6. Step 6: Final answer
    x = 403,537.35

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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.