Home / 1,528,284.42-2,109,079.92-839,943.84

Finding the Fourth Proportional to 1,528,284.42, 2,109,079.92 and 839,943.84

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Solution

The fourth proportional to 1,528,284.42, 2,109,079.92 and 839,943.84 is: 1,159,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,284.42 : 2,109,079.92 = 839,943.84 : x
  2. Step 2: Convert to fraction form
    1,528,284.42/2,109,079.92 = 839,943.84/x
  3. Step 3: Cross multiply
    1,528,284.42x = 2,109,079.92 × 839,943.84
  4. Step 4: Simplify right side
    1,528,284.42x = 1,771,508,686,871.69
  5. Step 5: Solve for x
    x = 1,771,508,686,871.69/1,528,284.42
  6. Step 6: Final answer
    x = 1,159,148.56

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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.