Home / 786,194.74-1,179,353.67-280,864.90

Finding the Fourth Proportional to 786,194.74, 1,179,353.67 and 280,864.90

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Solution

The fourth proportional to 786,194.74, 1,179,353.67 and 280,864.90 is: 421,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,194.74 : 1,179,353.67 = 280,864.90 : x
  2. Step 2: Convert to fraction form
    786,194.74/1,179,353.67 = 280,864.90/x
  3. Step 3: Cross multiply
    786,194.74x = 1,179,353.67 × 280,864.90
  4. Step 4: Simplify right side
    786,194.74x = 331,239,050,589.18
  5. Step 5: Solve for x
    x = 331,239,050,589.18/786,194.74
  6. Step 6: Final answer
    x = 421,319.34

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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.