Home / 1,150,312.64-1,586,978.88-768,588.80

Finding the Fourth Proportional to 1,150,312.64, 1,586,978.88 and 768,588.80

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Solution

The fourth proportional to 1,150,312.64, 1,586,978.88 and 768,588.80 is: 1,060,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,312.64 : 1,586,978.88 = 768,588.80 : x
  2. Step 2: Convert to fraction form
    1,150,312.64/1,586,978.88 = 768,588.80/x
  3. Step 3: Cross multiply
    1,150,312.64x = 1,586,978.88 × 768,588.80
  4. Step 4: Simplify right side
    1,150,312.64x = 1,219,734,193,004.54
  5. Step 5: Solve for x
    x = 1,219,734,193,004.54/1,150,312.64
  6. Step 6: Final answer
    x = 1,060,350.16

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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.