Home / 498,541.37-687,983.49-272,186.87

Finding the Fourth Proportional to 498,541.37, 687,983.49 and 272,186.87

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Solution

The fourth proportional to 498,541.37, 687,983.49 and 272,186.87 is: 375,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,541.37 : 687,983.49 = 272,186.87 : x
  2. Step 2: Convert to fraction form
    498,541.37/687,983.49 = 272,186.87/x
  3. Step 3: Cross multiply
    498,541.37x = 687,983.49 × 272,186.87
  4. Step 4: Simplify right side
    498,541.37x = 187,260,069,314.86
  5. Step 5: Solve for x
    x = 187,260,069,314.86/498,541.37
  6. Step 6: Final answer
    x = 375,615.91

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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.