Home / 920,566.50-1,380,898.96-289,529.52

Finding the Fourth Proportional to 920,566.50, 1,380,898.96 and 289,529.52

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Solution

The fourth proportional to 920,566.50, 1,380,898.96 and 289,529.52 is: 434,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,566.50 : 1,380,898.96 = 289,529.52 : x
  2. Step 2: Convert to fraction form
    920,566.50/1,380,898.96 = 289,529.52/x
  3. Step 3: Cross multiply
    920,566.50x = 1,380,898.96 × 289,529.52
  4. Step 4: Simplify right side
    920,566.50x = 399,811,012,333.48
  5. Step 5: Solve for x
    x = 399,811,012,333.48/920,566.50
  6. Step 6: Final answer
    x = 434,309.76

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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.