Home / 808,043.91-1,212,422.87-423,700.98

Finding the Fourth Proportional to 808,043.91, 1,212,422.87 and 423,700.98

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Solution

The fourth proportional to 808,043.91, 1,212,422.87 and 423,700.98 is: 635,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,043.91 : 1,212,422.87 = 423,700.98 : x
  2. Step 2: Convert to fraction form
    808,043.91/1,212,422.87 = 423,700.98/x
  3. Step 3: Cross multiply
    808,043.91x = 1,212,422.87 × 423,700.98
  4. Step 4: Simplify right side
    808,043.91x = 513,704,758,193.41
  5. Step 5: Solve for x
    x = 513,704,758,193.41/808,043.91
  6. Step 6: Final answer
    x = 635,738.67

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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.