Home / 776,838.40-1,165,549.20-303,863.20

Finding the Fourth Proportional to 776,838.40, 1,165,549.20 and 303,863.20

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Solution

The fourth proportional to 776,838.40, 1,165,549.20 and 303,863.20 is: 455,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,838.40 : 1,165,549.20 = 303,863.20 : x
  2. Step 2: Convert to fraction form
    776,838.40/1,165,549.20 = 303,863.20/x
  3. Step 3: Cross multiply
    776,838.40x = 1,165,549.20 × 303,863.20
  4. Step 4: Simplify right side
    776,838.40x = 354,167,509,669.44
  5. Step 5: Solve for x
    x = 354,167,509,669.44/776,838.40
  6. Step 6: Final answer
    x = 455,908.86

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1.5x scale

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.