Home / 579,531.80-869,729.70-298,904.60

Finding the Fourth Proportional to 579,531.80, 869,729.70 and 298,904.60

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Solution

The fourth proportional to 579,531.80, 869,729.70 and 298,904.60 is: 448,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,531.80 : 869,729.70 = 298,904.60 : x
  2. Step 2: Convert to fraction form
    579,531.80/869,729.70 = 298,904.60/x
  3. Step 3: Cross multiply
    579,531.80x = 869,729.70 × 298,904.60
  4. Step 4: Simplify right side
    579,531.80x = 259,966,208,086.62
  5. Step 5: Solve for x
    x = 259,966,208,086.62/579,531.80
  6. Step 6: Final answer
    x = 448,579.71

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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.