Home / 820,389.47-1,132,137.61-452,866.75

Finding the Fourth Proportional to 820,389.47, 1,132,137.61 and 452,866.75

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Solution

The fourth proportional to 820,389.47, 1,132,137.61 and 452,866.75 is: 624,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,389.47 : 1,132,137.61 = 452,866.75 : x
  2. Step 2: Convert to fraction form
    820,389.47/1,132,137.61 = 452,866.75/x
  3. Step 3: Cross multiply
    820,389.47x = 1,132,137.61 × 452,866.75
  4. Step 4: Simplify right side
    820,389.47x = 512,707,476,030.96
  5. Step 5: Solve for x
    x = 512,707,476,030.96/820,389.47
  6. Step 6: Final answer
    x = 624,956.19

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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.