Home / 679,214.76-1,019,035.50-280,043.40

Finding the Fourth Proportional to 679,214.76, 1,019,035.50 and 280,043.40

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Solution

The fourth proportional to 679,214.76, 1,019,035.50 and 280,043.40 is: 420,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,214.76 : 1,019,035.50 = 280,043.40 : x
  2. Step 2: Convert to fraction form
    679,214.76/1,019,035.50 = 280,043.40/x
  3. Step 3: Cross multiply
    679,214.76x = 1,019,035.50 × 280,043.40
  4. Step 4: Simplify right side
    679,214.76x = 285,374,166,140.70
  5. Step 5: Solve for x
    x = 285,374,166,140.70/679,214.76
  6. Step 6: Final answer
    x = 420,153.07

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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.