Home / 1,428,611.52-1,971,477.64-784,042.16

Finding the Fourth Proportional to 1,428,611.52, 1,971,477.64 and 784,042.16

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Solution

The fourth proportional to 1,428,611.52, 1,971,477.64 and 784,042.16 is: 1,081,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,611.52 : 1,971,477.64 = 784,042.16 : x
  2. Step 2: Convert to fraction form
    1,428,611.52/1,971,477.64 = 784,042.16/x
  3. Step 3: Cross multiply
    1,428,611.52x = 1,971,477.64 × 784,042.16
  4. Step 4: Simplify right side
    1,428,611.52x = 1,545,721,587,257.30
  5. Step 5: Solve for x
    x = 1,545,721,587,257.30/1,428,611.52
  6. Step 6: Final answer
    x = 1,081,974.75

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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.