Home / 827,429.98-1,241,157.45-315,123.48

Finding the Fourth Proportional to 827,429.98, 1,241,157.45 and 315,123.48

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Solution

The fourth proportional to 827,429.98, 1,241,157.45 and 315,123.48 is: 472,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,429.98 : 1,241,157.45 = 315,123.48 : x
  2. Step 2: Convert to fraction form
    827,429.98/1,241,157.45 = 315,123.48/x
  3. Step 3: Cross multiply
    827,429.98x = 1,241,157.45 × 315,123.48
  4. Step 4: Simplify right side
    827,429.98x = 391,117,848,666.14
  5. Step 5: Solve for x
    x = 391,117,848,666.14/827,429.98
  6. Step 6: Final answer
    x = 472,689.97

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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.