Home / 920,836.52-1,381,123.56-289,733.94

Finding the Fourth Proportional to 920,836.52, 1,381,123.56 and 289,733.94

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Solution

The fourth proportional to 920,836.52, 1,381,123.56 and 289,733.94 is: 434,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,836.52 : 1,381,123.56 = 289,733.94 : x
  2. Step 2: Convert to fraction form
    920,836.52/1,381,123.56 = 289,733.94/x
  3. Step 3: Cross multiply
    920,836.52x = 1,381,123.56 × 289,733.94
  4. Step 4: Simplify right side
    920,836.52x = 400,158,370,665.63
  5. Step 5: Solve for x
    x = 400,158,370,665.63/920,836.52
  6. Step 6: Final answer
    x = 434,559.62

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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.