Home / 420,391.98-579,941.10-248,194.62

Finding the Fourth Proportional to 420,391.98, 579,941.10 and 248,194.62

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Solution

The fourth proportional to 420,391.98, 579,941.10 and 248,194.62 is: 342,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,391.98 : 579,941.10 = 248,194.62 : x
  2. Step 2: Convert to fraction form
    420,391.98/579,941.10 = 248,194.62/x
  3. Step 3: Cross multiply
    420,391.98x = 579,941.10 × 248,194.62
  4. Step 4: Simplify right side
    420,391.98x = 143,938,260,936.88
  5. Step 5: Solve for x
    x = 143,938,260,936.88/420,391.98
  6. Step 6: Final answer
    x = 342,390.60

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1.5x scale

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.