Home / 753,085.28-1,129,388.64-247,529.60

Finding the Fourth Proportional to 753,085.28, 1,129,388.64 and 247,529.60

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Solution

The fourth proportional to 753,085.28, 1,129,388.64 and 247,529.60 is: 371,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,085.28 : 1,129,388.64 = 247,529.60 : x
  2. Step 2: Convert to fraction form
    753,085.28/1,129,388.64 = 247,529.60/x
  3. Step 3: Cross multiply
    753,085.28x = 1,129,388.64 × 247,529.60
  4. Step 4: Simplify right side
    753,085.28x = 279,557,118,303.74
  5. Step 5: Solve for x
    x = 279,557,118,303.74/753,085.28
  6. Step 6: Final answer
    x = 371,215.75

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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.