Home / 786,099.40-1,179,398.24-280,649.54

Finding the Fourth Proportional to 786,099.40, 1,179,398.24 and 280,649.54

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Solution

The fourth proportional to 786,099.40, 1,179,398.24 and 280,649.54 is: 421,063.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,099.40 : 1,179,398.24 = 280,649.54 : x
  2. Step 2: Convert to fraction form
    786,099.40/1,179,398.24 = 280,649.54/x
  3. Step 3: Cross multiply
    786,099.40x = 1,179,398.24 × 280,649.54
  4. Step 4: Simplify right side
    786,099.40x = 330,997,573,532.81
  5. Step 5: Solve for x
    x = 330,997,573,532.81/786,099.40
  6. Step 6: Final answer
    x = 421,063.26

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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.