Home / 498,623.72-688,099.66-272,269.22

Finding the Fourth Proportional to 498,623.72, 688,099.66 and 272,269.22

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Solution

The fourth proportional to 498,623.72, 688,099.66 and 272,269.22 is: 375,730.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,623.72 : 688,099.66 = 272,269.22 : x
  2. Step 2: Convert to fraction form
    498,623.72/688,099.66 = 272,269.22/x
  3. Step 3: Cross multiply
    498,623.72x = 688,099.66 × 272,269.22
  4. Step 4: Simplify right side
    498,623.72x = 187,348,353,589.29
  5. Step 5: Solve for x
    x = 187,348,353,589.29/498,623.72
  6. Step 6: Final answer
    x = 375,730.93

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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.