Home / 436,176.80-654,649.20-258,461.60

Finding the Fourth Proportional to 436,176.80, 654,649.20 and 258,461.60

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Solution

The fourth proportional to 436,176.80, 654,649.20 and 258,461.60 is: 387,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,176.80 : 654,649.20 = 258,461.60 : x
  2. Step 2: Convert to fraction form
    436,176.80/654,649.20 = 258,461.60/x
  3. Step 3: Cross multiply
    436,176.80x = 654,649.20 × 258,461.60
  4. Step 4: Simplify right side
    436,176.80x = 169,201,679,670.72
  5. Step 5: Solve for x
    x = 169,201,679,670.72/436,176.80
  6. Step 6: Final answer
    x = 387,919.94

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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.