Home / 1,431,336.94-1,975,218.38-786,743.34

Finding the Fourth Proportional to 1,431,336.94, 1,975,218.38 and 786,743.34

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Solution

The fourth proportional to 1,431,336.94, 1,975,218.38 and 786,743.34 is: 1,085,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,336.94 : 1,975,218.38 = 786,743.34 : x
  2. Step 2: Convert to fraction form
    1,431,336.94/1,975,218.38 = 786,743.34/x
  3. Step 3: Cross multiply
    1,431,336.94x = 1,975,218.38 × 786,743.34
  4. Step 4: Simplify right side
    1,431,336.94x = 1,553,989,905,510.59
  5. Step 5: Solve for x
    x = 1,553,989,905,510.59/1,431,336.94
  6. Step 6: Final answer
    x = 1,085,691.19

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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.