Home / 679,208.76-1,019,026.50-280,037.40

Finding the Fourth Proportional to 679,208.76, 1,019,026.50 and 280,037.40

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Solution

The fourth proportional to 679,208.76, 1,019,026.50 and 280,037.40 is: 420,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,208.76 : 1,019,026.50 = 280,037.40 : x
  2. Step 2: Convert to fraction form
    679,208.76/1,019,026.50 = 280,037.40/x
  3. Step 3: Cross multiply
    679,208.76x = 1,019,026.50 × 280,037.40
  4. Step 4: Simplify right side
    679,208.76x = 285,365,531,591.10
  5. Step 5: Solve for x
    x = 285,365,531,591.10/679,208.76
  6. Step 6: Final answer
    x = 420,144.07

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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.