Home / 979,077.28-1,468,628.88-380,072.56

Finding the Fourth Proportional to 979,077.28, 1,468,628.88 and 380,072.56

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Solution

The fourth proportional to 979,077.28, 1,468,628.88 and 380,072.56 is: 570,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,077.28 : 1,468,628.88 = 380,072.56 : x
  2. Step 2: Convert to fraction form
    979,077.28/1,468,628.88 = 380,072.56/x
  3. Step 3: Cross multiply
    979,077.28x = 1,468,628.88 × 380,072.56
  4. Step 4: Simplify right side
    979,077.28x = 558,185,538,111.53
  5. Step 5: Solve for x
    x = 558,185,538,111.53/979,077.28
  6. Step 6: Final answer
    x = 570,113.87

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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.