Home / 579,532.80-869,731.20-298,905.60

Finding the Fourth Proportional to 579,532.80, 869,731.20 and 298,905.60

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Solution

The fourth proportional to 579,532.80, 869,731.20 and 298,905.60 is: 448,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,532.80 : 869,731.20 = 298,905.60 : x
  2. Step 2: Convert to fraction form
    579,532.80/869,731.20 = 298,905.60/x
  3. Step 3: Cross multiply
    579,532.80x = 869,731.20 × 298,905.60
  4. Step 4: Simplify right side
    579,532.80x = 259,967,526,174.72
  5. Step 5: Solve for x
    x = 259,967,526,174.72/579,532.80
  6. Step 6: Final answer
    x = 448,581.21

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1.5x scale

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.