Home / 498,586.74-688,040.22-304,980.27

Finding the Fourth Proportional to 498,586.74, 688,040.22 and 304,980.27

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Solution

The fourth proportional to 498,586.74, 688,040.22 and 304,980.27 is: 420,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,586.74 : 688,040.22 = 304,980.27 : x
  2. Step 2: Convert to fraction form
    498,586.74/688,040.22 = 304,980.27/x
  3. Step 3: Cross multiply
    498,586.74x = 688,040.22 × 304,980.27
  4. Step 4: Simplify right side
    498,586.74x = 209,838,688,626.26
  5. Step 5: Solve for x
    x = 209,838,688,626.26/498,586.74
  6. Step 6: Final answer
    x = 420,866.97

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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.