Home / 920,852.52-1,381,147.38-289,749.84

Finding the Fourth Proportional to 920,852.52, 1,381,147.38 and 289,749.84

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Solution

The fourth proportional to 920,852.52, 1,381,147.38 and 289,749.84 is: 434,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,852.52 : 1,381,147.38 = 289,749.84 : x
  2. Step 2: Convert to fraction form
    920,852.52/1,381,147.38 = 289,749.84/x
  3. Step 3: Cross multiply
    920,852.52x = 1,381,147.38 × 289,749.84
  4. Step 4: Simplify right side
    920,852.52x = 400,187,232,371.42
  5. Step 5: Solve for x
    x = 400,187,232,371.42/920,852.52
  6. Step 6: Final answer
    x = 434,583.41

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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.