Home / 807,421.74-1,211,369.46-238,817.84

Finding the Fourth Proportional to 807,421.74, 1,211,369.46 and 238,817.84

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Solution

The fourth proportional to 807,421.74, 1,211,369.46 and 238,817.84 is: 358,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,421.74 : 1,211,369.46 = 238,817.84 : x
  2. Step 2: Convert to fraction form
    807,421.74/1,211,369.46 = 238,817.84/x
  3. Step 3: Cross multiply
    807,421.74x = 1,211,369.46 × 238,817.84
  4. Step 4: Simplify right side
    807,421.74x = 289,296,637,879.17
  5. Step 5: Solve for x
    x = 289,296,637,879.17/807,421.74
  6. Step 6: Final answer
    x = 358,296.82

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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.