Home / 946,140.92-1,418,445.12-645,865.28

Finding the Fourth Proportional to 946,140.92, 1,418,445.12 and 645,865.28

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Solution

The fourth proportional to 946,140.92, 1,418,445.12 and 645,865.28 is: 968,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,140.92 : 1,418,445.12 = 645,865.28 : x
  2. Step 2: Convert to fraction form
    946,140.92/1,418,445.12 = 645,865.28/x
  3. Step 3: Cross multiply
    946,140.92x = 1,418,445.12 × 645,865.28
  4. Step 4: Simplify right side
    946,140.92x = 916,124,454,593.43
  5. Step 5: Solve for x
    x = 916,124,454,593.43/946,140.92
  6. Step 6: Final answer
    x = 968,274.85

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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.