Home / 652,289.20-977,121.60-439,712.80

Finding the Fourth Proportional to 652,289.20, 977,121.60 and 439,712.80

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Solution

The fourth proportional to 652,289.20, 977,121.60 and 439,712.80 is: 658,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,289.20 : 977,121.60 = 439,712.80 : x
  2. Step 2: Convert to fraction form
    652,289.20/977,121.60 = 439,712.80/x
  3. Step 3: Cross multiply
    652,289.20x = 977,121.60 × 439,712.80
  4. Step 4: Simplify right side
    652,289.20x = 429,652,874,676.48
  5. Step 5: Solve for x
    x = 429,652,874,676.48/652,289.20
  6. Step 6: Final answer
    x = 658,684.64

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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.