Home / 808,042.91-1,212,421.37-423,699.98

Finding the Fourth Proportional to 808,042.91, 1,212,421.37 and 423,699.98

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Solution

The fourth proportional to 808,042.91, 1,212,421.37 and 423,699.98 is: 635,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,042.91 : 1,212,421.37 = 423,699.98 : x
  2. Step 2: Convert to fraction form
    808,042.91/1,212,421.37 = 423,699.98/x
  3. Step 3: Cross multiply
    808,042.91x = 1,212,421.37 × 423,699.98
  4. Step 4: Simplify right side
    808,042.91x = 513,702,914,098.49
  5. Step 5: Solve for x
    x = 513,702,914,098.49/808,042.91
  6. Step 6: Final answer
    x = 635,737.17

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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.