Home / 653,220.79-979,578.46-253,808.98

Finding the Fourth Proportional to 653,220.79, 979,578.46 and 253,808.98

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Solution

The fourth proportional to 653,220.79, 979,578.46 and 253,808.98 is: 380,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,220.79 : 979,578.46 = 253,808.98 : x
  2. Step 2: Convert to fraction form
    653,220.79/979,578.46 = 253,808.98/x
  3. Step 3: Cross multiply
    653,220.79x = 979,578.46 × 253,808.98
  4. Step 4: Simplify right side
    653,220.79x = 248,625,807,630.89
  5. Step 5: Solve for x
    x = 248,625,807,630.89/653,220.79
  6. Step 6: Final answer
    x = 380,615.27

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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.