Home / 905,164.48-1,248,950.20-518,098.32

Finding the Fourth Proportional to 905,164.48, 1,248,950.20 and 518,098.32

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Solution

The fourth proportional to 905,164.48, 1,248,950.20 and 518,098.32 is: 714,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,164.48 : 1,248,950.20 = 518,098.32 : x
  2. Step 2: Convert to fraction form
    905,164.48/1,248,950.20 = 518,098.32/x
  3. Step 3: Cross multiply
    905,164.48x = 1,248,950.20 × 518,098.32
  4. Step 4: Simplify right side
    905,164.48x = 647,079,000,383.66
  5. Step 5: Solve for x
    x = 647,079,000,383.66/905,164.48
  6. Step 6: Final answer
    x = 714,874.49

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Double scale
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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.