Home / 653,500.20-980,279.10-369,186.60

Finding the Fourth Proportional to 653,500.20, 980,279.10 and 369,186.60

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Solution

The fourth proportional to 653,500.20, 980,279.10 and 369,186.60 is: 553,796.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,500.20 : 980,279.10 = 369,186.60 : x
  2. Step 2: Convert to fraction form
    653,500.20/980,279.10 = 369,186.60/x
  3. Step 3: Cross multiply
    653,500.20x = 980,279.10 × 369,186.60
  4. Step 4: Simplify right side
    653,500.20x = 361,905,907,980.06
  5. Step 5: Solve for x
    x = 361,905,907,980.06/653,500.20
  6. Step 6: Final answer
    x = 553,796.17

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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.