Home / 920,835.52-1,381,122.06-289,732.93

Finding the Fourth Proportional to 920,835.52, 1,381,122.06 and 289,732.93

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Solution

The fourth proportional to 920,835.52, 1,381,122.06 and 289,732.93 is: 434,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,835.52 : 1,381,122.06 = 289,732.93 : x
  2. Step 2: Convert to fraction form
    920,835.52/1,381,122.06 = 289,732.93/x
  3. Step 3: Cross multiply
    920,835.52x = 1,381,122.06 × 289,732.93
  4. Step 4: Simplify right side
    920,835.52x = 400,156,541,131.44
  5. Step 5: Solve for x
    x = 400,156,541,131.44/920,835.52
  6. Step 6: Final answer
    x = 434,558.11

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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.