Home / 769,928.90-1,062,132.81-498,082.10

Finding the Fourth Proportional to 769,928.90, 1,062,132.81 and 498,082.10

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Solution

The fourth proportional to 769,928.90, 1,062,132.81 and 498,082.10 is: 687,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,928.90 : 1,062,132.81 = 498,082.10 : x
  2. Step 2: Convert to fraction form
    769,928.90/1,062,132.81 = 498,082.10/x
  3. Step 3: Cross multiply
    769,928.90x = 1,062,132.81 × 498,082.10
  4. Step 4: Simplify right side
    769,928.90x = 529,029,340,483.70
  5. Step 5: Solve for x
    x = 529,029,340,483.70/769,928.90
  6. Step 6: Final answer
    x = 687,114.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.