Home / 808,046.72-1,212,427.10-423,703.80

Finding the Fourth Proportional to 808,046.72, 1,212,427.10 and 423,703.80

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Solution

The fourth proportional to 808,046.72, 1,212,427.10 and 423,703.80 is: 635,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,046.72 : 1,212,427.10 = 423,703.80 : x
  2. Step 2: Convert to fraction form
    808,046.72/1,212,427.10 = 423,703.80/x
  3. Step 3: Cross multiply
    808,046.72x = 1,212,427.10 × 423,703.80
  4. Step 4: Simplify right side
    808,046.72x = 513,709,969,492.98
  5. Step 5: Solve for x
    x = 513,709,969,492.98/808,046.72
  6. Step 6: Final answer
    x = 635,742.91

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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.