Home / 790,811.84-1,091,398.40-451,330.88

Finding the Fourth Proportional to 790,811.84, 1,091,398.40 and 451,330.88

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Solution

The fourth proportional to 790,811.84, 1,091,398.40 and 451,330.88 is: 622,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,811.84 : 1,091,398.40 = 451,330.88 : x
  2. Step 2: Convert to fraction form
    790,811.84/1,091,398.40 = 451,330.88/x
  3. Step 3: Cross multiply
    790,811.84x = 1,091,398.40 × 451,330.88
  4. Step 4: Simplify right side
    790,811.84x = 492,581,800,302.59
  5. Step 5: Solve for x
    x = 492,581,800,302.59/790,811.84
  6. Step 6: Final answer
    x = 622,881.17

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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.