Home / 436,562.20-653,531.10-258,977.80

Finding the Fourth Proportional to 436,562.20, 653,531.10 and 258,977.80

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Solution

The fourth proportional to 436,562.20, 653,531.10 and 258,977.80 is: 387,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,562.20 : 653,531.10 = 258,977.80 : x
  2. Step 2: Convert to fraction form
    436,562.20/653,531.10 = 258,977.80/x
  3. Step 3: Cross multiply
    436,562.20x = 653,531.10 × 258,977.80
  4. Step 4: Simplify right side
    436,562.20x = 169,250,046,509.58
  5. Step 5: Solve for x
    x = 169,250,046,509.58/436,562.20
  6. Step 6: Final answer
    x = 387,688.28

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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.