Home / 854,220.87-1,178,849.57-472,272.39

Finding the Fourth Proportional to 854,220.87, 1,178,849.57 and 472,272.39

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Solution

The fourth proportional to 854,220.87, 1,178,849.57 and 472,272.39 is: 651,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,220.87 : 1,178,849.57 = 472,272.39 : x
  2. Step 2: Convert to fraction form
    854,220.87/1,178,849.57 = 472,272.39/x
  3. Step 3: Cross multiply
    854,220.87x = 1,178,849.57 × 472,272.39
  4. Step 4: Simplify right side
    854,220.87x = 556,738,101,513.01
  5. Step 5: Solve for x
    x = 556,738,101,513.01/854,220.87
  6. Step 6: Final answer
    x = 651,749.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.