Home / 420,723.61-580,522.10-248,670.50

Finding the Fourth Proportional to 420,723.61, 580,522.10 and 248,670.50

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Solution

The fourth proportional to 420,723.61, 580,522.10 and 248,670.50 is: 343,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,723.61 : 580,522.10 = 248,670.50 : x
  2. Step 2: Convert to fraction form
    420,723.61/580,522.10 = 248,670.50/x
  3. Step 3: Cross multiply
    420,723.61x = 580,522.10 × 248,670.50
  4. Step 4: Simplify right side
    420,723.61x = 144,358,716,722.09
  5. Step 5: Solve for x
    x = 144,358,716,722.09/420,723.61
  6. Step 6: Final answer
    x = 343,120.08

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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.