Home / 519,037.60-778,556.40-487,544.80

Finding the Fourth Proportional to 519,037.60, 778,556.40 and 487,544.80

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Solution

The fourth proportional to 519,037.60, 778,556.40 and 487,544.80 is: 731,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,037.60 : 778,556.40 = 487,544.80 : x
  2. Step 2: Convert to fraction form
    519,037.60/778,556.40 = 487,544.80/x
  3. Step 3: Cross multiply
    519,037.60x = 778,556.40 × 487,544.80
  4. Step 4: Simplify right side
    519,037.60x = 379,581,124,326.72
  5. Step 5: Solve for x
    x = 379,581,124,326.72/519,037.60
  6. Step 6: Final answer
    x = 731,317.20

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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.