Home / 1,208,342.96-1,812,472.20-309,793.76

Finding the Fourth Proportional to 1,208,342.96, 1,812,472.20 and 309,793.76

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Solution

The fourth proportional to 1,208,342.96, 1,812,472.20 and 309,793.76 is: 464,679.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,342.96 : 1,812,472.20 = 309,793.76 : x
  2. Step 2: Convert to fraction form
    1,208,342.96/1,812,472.20 = 309,793.76/x
  3. Step 3: Cross multiply
    1,208,342.96x = 1,812,472.20 × 309,793.76
  4. Step 4: Simplify right side
    1,208,342.96x = 561,492,577,733.47
  5. Step 5: Solve for x
    x = 561,492,577,733.47/1,208,342.96
  6. Step 6: Final answer
    x = 464,679.81

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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.