Home / 987,509.68-1,362,874.19-557,817.49

Finding the Fourth Proportional to 987,509.68, 1,362,874.19 and 557,817.49

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Solution

The fourth proportional to 987,509.68, 1,362,874.19 and 557,817.49 is: 769,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,509.68 : 1,362,874.19 = 557,817.49 : x
  2. Step 2: Convert to fraction form
    987,509.68/1,362,874.19 = 557,817.49/x
  3. Step 3: Cross multiply
    987,509.68x = 1,362,874.19 × 557,817.49
  4. Step 4: Simplify right side
    987,509.68x = 760,235,061,903.81
  5. Step 5: Solve for x
    x = 760,235,061,903.81/987,509.68
  6. Step 6: Final answer
    x = 769,850.74

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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.