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Finding the Fourth Proportional to 1,333,151.84, 1,839,742.08 and 721,303.04

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Solution

The fourth proportional to 1,333,151.84, 1,839,742.08 and 721,303.04 is: 995,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,151.84 : 1,839,742.08 = 721,303.04 : x
  2. Step 2: Convert to fraction form
    1,333,151.84/1,839,742.08 = 721,303.04/x
  3. Step 3: Cross multiply
    1,333,151.84x = 1,839,742.08 × 721,303.04
  4. Step 4: Simplify right side
    1,333,151.84x = 1,327,011,555,119.92
  5. Step 5: Solve for x
    x = 1,327,011,555,119.92/1,333,151.84
  6. Step 6: Final answer
    x = 995,394.16

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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.