Home / 499,228.16-688,935.20-272,873.64

Finding the Fourth Proportional to 499,228.16, 688,935.20 and 272,873.64

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Solution

The fourth proportional to 499,228.16, 688,935.20 and 272,873.64 is: 376,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,228.16 : 688,935.20 = 272,873.64 : x
  2. Step 2: Convert to fraction form
    499,228.16/688,935.20 = 272,873.64/x
  3. Step 3: Cross multiply
    499,228.16x = 688,935.20 × 272,873.64
  4. Step 4: Simplify right side
    499,228.16x = 187,992,255,748.13
  5. Step 5: Solve for x
    x = 187,992,255,748.13/499,228.16
  6. Step 6: Final answer
    x = 376,565.81

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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.