Home / 1,428,263.65-1,970,937.88-783,667.81

Finding the Fourth Proportional to 1,428,263.65, 1,970,937.88 and 783,667.81

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Solution

The fourth proportional to 1,428,263.65, 1,970,937.88 and 783,667.81 is: 1,081,425.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,263.65 : 1,970,937.88 = 783,667.81 : x
  2. Step 2: Convert to fraction form
    1,428,263.65/1,970,937.88 = 783,667.81/x
  3. Step 3: Cross multiply
    1,428,263.65x = 1,970,937.88 × 783,667.81
  4. Step 4: Simplify right side
    1,428,263.65x = 1,544,560,572,065.64
  5. Step 5: Solve for x
    x = 1,544,560,572,065.64/1,428,263.65
  6. Step 6: Final answer
    x = 1,081,425.39

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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.