Home / 921,407.82-1,381,781.22-352,948.74

Finding the Fourth Proportional to 921,407.82, 1,381,781.22 and 352,948.74

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Solution

The fourth proportional to 921,407.82, 1,381,781.22 and 352,948.74 is: 529,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,407.82 : 1,381,781.22 = 352,948.74 : x
  2. Step 2: Convert to fraction form
    921,407.82/1,381,781.22 = 352,948.74/x
  3. Step 3: Cross multiply
    921,407.82x = 1,381,781.22 × 352,948.74
  4. Step 4: Simplify right side
    921,407.82x = 487,697,940,554.66
  5. Step 5: Solve for x
    x = 487,697,940,554.66/921,407.82
  6. Step 6: Final answer
    x = 529,296.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.