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Finding the Fourth Proportional to 985,569.81, 1,480,845.87 and 945,711.87

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Solution

The fourth proportional to 985,569.81, 1,480,845.87 and 945,711.87 is: 1,420,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,569.81 : 1,480,845.87 = 945,711.87 : x
  2. Step 2: Convert to fraction form
    985,569.81/1,480,845.87 = 945,711.87/x
  3. Step 3: Cross multiply
    985,569.81x = 1,480,845.87 × 945,711.87
  4. Step 4: Simplify right side
    985,569.81x = 1,400,453,516,899.48
  5. Step 5: Solve for x
    x = 1,400,453,516,899.48/985,569.81
  6. Step 6: Final answer
    x = 1,420,958.21

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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.