Home / 1,259,428.39-1,738,011.67-715,564.89

Finding the Fourth Proportional to 1,259,428.39, 1,738,011.67 and 715,564.89

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Solution

The fourth proportional to 1,259,428.39, 1,738,011.67 and 715,564.89 is: 987,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,428.39 : 1,738,011.67 = 715,564.89 : x
  2. Step 2: Convert to fraction form
    1,259,428.39/1,738,011.67 = 715,564.89/x
  3. Step 3: Cross multiply
    1,259,428.39x = 1,738,011.67 × 715,564.89
  4. Step 4: Simplify right side
    1,259,428.39x = 1,243,660,127,673.35
  5. Step 5: Solve for x
    x = 1,243,660,127,673.35/1,259,428.39
  6. Step 6: Final answer
    x = 987,479.83

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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.