Home / 765,879.98-1,057,056.10-443,590

Finding the Fourth Proportional to 765,879.98, 1,057,056.10 and 443,590

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Solution

The fourth proportional to 765,879.98, 1,057,056.10 and 443,590 is: 612,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,879.98 : 1,057,056.10 = 443,590 : x
  2. Step 2: Convert to fraction form
    765,879.98/1,057,056.10 = 443,590/x
  3. Step 3: Cross multiply
    765,879.98x = 1,057,056.10 × 443,590
  4. Step 4: Simplify right side
    765,879.98x = 468,899,515,399.00
  5. Step 5: Solve for x
    x = 468,899,515,399.00/765,879.98
  6. Step 6: Final answer
    x = 612,236.29

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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.