Home / 498,869.37-688,439.61-269,426.79

Finding the Fourth Proportional to 498,869.37, 688,439.61 and 269,426.79

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Solution

The fourth proportional to 498,869.37, 688,439.61 and 269,426.79 is: 371,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,869.37 : 688,439.61 = 269,426.79 : x
  2. Step 2: Convert to fraction form
    498,869.37/688,439.61 = 269,426.79/x
  3. Step 3: Cross multiply
    498,869.37x = 688,439.61 × 269,426.79
  4. Step 4: Simplify right side
    498,869.37x = 185,484,074,231.15
  5. Step 5: Solve for x
    x = 185,484,074,231.15/498,869.37
  6. Step 6: Final answer
    x = 371,808.91

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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.