Home / 790,239.70-1,090,530.89-427,663.65

Finding the Fourth Proportional to 790,239.70, 1,090,530.89 and 427,663.65

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Solution

The fourth proportional to 790,239.70, 1,090,530.89 and 427,663.65 is: 590,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,239.70 : 1,090,530.89 = 427,663.65 : x
  2. Step 2: Convert to fraction form
    790,239.70/1,090,530.89 = 427,663.65/x
  3. Step 3: Cross multiply
    790,239.70x = 1,090,530.89 × 427,663.65
  4. Step 4: Simplify right side
    790,239.70x = 466,380,420,855.15
  5. Step 5: Solve for x
    x = 466,380,420,855.15/790,239.70
  6. Step 6: Final answer
    x = 590,175.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.