Home / 1,428,676.80-1,971,695-784,206.16

Finding the Fourth Proportional to 1,428,676.80, 1,971,695 and 784,206.16

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Solution

The fourth proportional to 1,428,676.80, 1,971,695 and 784,206.16 is: 1,082,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,676.80 : 1,971,695 = 784,206.16 : x
  2. Step 2: Convert to fraction form
    1,428,676.80/1,971,695 = 784,206.16/x
  3. Step 3: Cross multiply
    1,428,676.80x = 1,971,695 × 784,206.16
  4. Step 4: Simplify right side
    1,428,676.80x = 1,546,215,364,641.20
  5. Step 5: Solve for x
    x = 1,546,215,364,641.20/1,428,676.80
  6. Step 6: Final answer
    x = 1,082,270.93

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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.