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Finding the Fourth Proportional to 800,873.84, 1,105,184.04 and 494,827.76

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Solution

The fourth proportional to 800,873.84, 1,105,184.04 and 494,827.76 is: 682,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,873.84 : 1,105,184.04 = 494,827.76 : x
  2. Step 2: Convert to fraction form
    800,873.84/1,105,184.04 = 494,827.76/x
  3. Step 3: Cross multiply
    800,873.84x = 1,105,184.04 × 494,827.76
  4. Step 4: Simplify right side
    800,873.84x = 546,875,742,900.95
  5. Step 5: Solve for x
    x = 546,875,742,900.95/800,873.84
  6. Step 6: Final answer
    x = 682,848.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.