Home / 1,238,968.26-1,710,376.89-830,920.86

Finding the Fourth Proportional to 1,238,968.26, 1,710,376.89 and 830,920.86

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Solution

The fourth proportional to 1,238,968.26, 1,710,376.89 and 830,920.86 is: 1,147,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,968.26 : 1,710,376.89 = 830,920.86 : x
  2. Step 2: Convert to fraction form
    1,238,968.26/1,710,376.89 = 830,920.86/x
  3. Step 3: Cross multiply
    1,238,968.26x = 1,710,376.89 × 830,920.86
  4. Step 4: Simplify right side
    1,238,968.26x = 1,421,187,836,362.93
  5. Step 5: Solve for x
    x = 1,421,187,836,362.93/1,238,968.26
  6. Step 6: Final answer
    x = 1,147,073.64

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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.