Home / 420,579.90-580,331.82-248,473.94

Finding the Fourth Proportional to 420,579.90, 580,331.82 and 248,473.94

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Solution

The fourth proportional to 420,579.90, 580,331.82 and 248,473.94 is: 342,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,579.90 : 580,331.82 = 248,473.94 : x
  2. Step 2: Convert to fraction form
    420,579.90/580,331.82 = 248,473.94/x
  3. Step 3: Cross multiply
    420,579.90x = 580,331.82 × 248,473.94
  4. Step 4: Simplify right side
    420,579.90x = 144,197,333,822.77
  5. Step 5: Solve for x
    x = 144,197,333,822.77/420,579.90
  6. Step 6: Final answer
    x = 342,853.60

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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.