Home / 691,569.40-1,037,499.90-218,302.60

Finding the Fourth Proportional to 691,569.40, 1,037,499.90 and 218,302.60

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Solution

The fourth proportional to 691,569.40, 1,037,499.90 and 218,302.60 is: 327,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,569.40 : 1,037,499.90 = 218,302.60 : x
  2. Step 2: Convert to fraction form
    691,569.40/1,037,499.90 = 218,302.60/x
  3. Step 3: Cross multiply
    691,569.40x = 1,037,499.90 × 218,302.60
  4. Step 4: Simplify right side
    691,569.40x = 226,488,925,669.74
  5. Step 5: Solve for x
    x = 226,488,925,669.74/691,569.40
  6. Step 6: Final answer
    x = 327,499.92

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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.