Home / 786,005.07-1,179,256.71-280,554.86

Finding the Fourth Proportional to 786,005.07, 1,179,256.71 and 280,554.86

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Solution

The fourth proportional to 786,005.07, 1,179,256.71 and 280,554.86 is: 420,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,005.07 : 1,179,256.71 = 280,554.86 : x
  2. Step 2: Convert to fraction form
    786,005.07/1,179,256.71 = 280,554.86/x
  3. Step 3: Cross multiply
    786,005.07x = 1,179,256.71 × 280,554.86
  4. Step 4: Simplify right side
    786,005.07x = 330,846,195,281.83
  5. Step 5: Solve for x
    x = 330,846,195,281.83/786,005.07
  6. Step 6: Final answer
    x = 420,921.20

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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.