Home / 1,428,609.52-1,971,474.88-784,040.16

Finding the Fourth Proportional to 1,428,609.52, 1,971,474.88 and 784,040.16

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Solution

The fourth proportional to 1,428,609.52, 1,971,474.88 and 784,040.16 is: 1,081,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,609.52 : 1,971,474.88 = 784,040.16 : x
  2. Step 2: Convert to fraction form
    1,428,609.52/1,971,474.88 = 784,040.16/x
  3. Step 3: Cross multiply
    1,428,609.52x = 1,971,474.88 × 784,040.16
  4. Step 4: Simplify right side
    1,428,609.52x = 1,545,715,480,351.18
  5. Step 5: Solve for x
    x = 1,545,715,480,351.18/1,428,609.52
  6. Step 6: Final answer
    x = 1,081,971.99

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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.