Home / 1,428,641.46-1,971,461.97-784,062.90

Finding the Fourth Proportional to 1,428,641.46, 1,971,461.97 and 784,062.90

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Solution

The fourth proportional to 1,428,641.46, 1,971,461.97 and 784,062.90 is: 1,081,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,641.46 : 1,971,461.97 = 784,062.90 : x
  2. Step 2: Convert to fraction form
    1,428,641.46/1,971,461.97 = 784,062.90/x
  3. Step 3: Cross multiply
    1,428,641.46x = 1,971,461.97 × 784,062.90
  4. Step 4: Simplify right side
    1,428,641.46x = 1,545,750,189,437.91
  5. Step 5: Solve for x
    x = 1,545,750,189,437.91/1,428,641.46
  6. Step 6: Final answer
    x = 1,081,972.09

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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.