Home / 458,336.20-688,022.70-247,865.80

Finding the Fourth Proportional to 458,336.20, 688,022.70 and 247,865.80

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Solution

The fourth proportional to 458,336.20, 688,022.70 and 247,865.80 is: 372,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,336.20 : 688,022.70 = 247,865.80 : x
  2. Step 2: Convert to fraction form
    458,336.20/688,022.70 = 247,865.80/x
  3. Step 3: Cross multiply
    458,336.20x = 688,022.70 × 247,865.80
  4. Step 4: Simplify right side
    458,336.20x = 170,537,296,953.66
  5. Step 5: Solve for x
    x = 170,537,296,953.66/458,336.20
  6. Step 6: Final answer
    x = 372,079.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.