Home / 691,801.18-1,037,646.38-307,668.98

Finding the Fourth Proportional to 691,801.18, 1,037,646.38 and 307,668.98

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Solution

The fourth proportional to 691,801.18, 1,037,646.38 and 307,668.98 is: 461,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,801.18 : 1,037,646.38 = 307,668.98 : x
  2. Step 2: Convert to fraction form
    691,801.18/1,037,646.38 = 307,668.98/x
  3. Step 3: Cross multiply
    691,801.18x = 1,037,646.38 × 307,668.98
  4. Step 4: Simplify right side
    691,801.18x = 319,251,603,335.29
  5. Step 5: Solve for x
    x = 319,251,603,335.29/691,801.18
  6. Step 6: Final answer
    x = 461,478.84

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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.