Home / 987,416.42-1,362,635.61-557,697.38

Finding the Fourth Proportional to 987,416.42, 1,362,635.61 and 557,697.38

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Solution

The fourth proportional to 987,416.42, 1,362,635.61 and 557,697.38 is: 769,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,416.42 : 1,362,635.61 = 557,697.38 : x
  2. Step 2: Convert to fraction form
    987,416.42/1,362,635.61 = 557,697.38/x
  3. Step 3: Cross multiply
    987,416.42x = 1,362,635.61 × 557,697.38
  4. Step 4: Simplify right side
    987,416.42x = 759,938,309,591.70
  5. Step 5: Solve for x
    x = 759,938,309,591.70/987,416.42
  6. Step 6: Final answer
    x = 769,622.92

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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.