Home / 786,012.75-1,178,977.77-253,533.87

Finding the Fourth Proportional to 786,012.75, 1,178,977.77 and 253,533.87

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Solution

The fourth proportional to 786,012.75, 1,178,977.77 and 253,533.87 is: 380,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,012.75 : 1,178,977.77 = 253,533.87 : x
  2. Step 2: Convert to fraction form
    786,012.75/1,178,977.77 = 253,533.87/x
  3. Step 3: Cross multiply
    786,012.75x = 1,178,977.77 × 253,533.87
  4. Step 4: Simplify right side
    786,012.75x = 298,910,796,672.07
  5. Step 5: Solve for x
    x = 298,910,796,672.07/786,012.75
  6. Step 6: Final answer
    x = 380,287.47

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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.