Home / 1,289,298.72-1,934,787.22-490,586.88

Finding the Fourth Proportional to 1,289,298.72, 1,934,787.22 and 490,586.88

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Solution

The fourth proportional to 1,289,298.72, 1,934,787.22 and 490,586.88 is: 736,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,298.72 : 1,934,787.22 = 490,586.88 : x
  2. Step 2: Convert to fraction form
    1,289,298.72/1,934,787.22 = 490,586.88/x
  3. Step 3: Cross multiply
    1,289,298.72x = 1,934,787.22 × 490,586.88
  4. Step 4: Simplify right side
    1,289,298.72x = 949,181,225,723.67
  5. Step 5: Solve for x
    x = 949,181,225,723.67/1,289,298.72
  6. Step 6: Final answer
    x = 736,199.62

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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.