Home / 1,215,838.36-1,678,065.29-706,835.98

Finding the Fourth Proportional to 1,215,838.36, 1,678,065.29 and 706,835.98

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Solution

The fourth proportional to 1,215,838.36, 1,678,065.29 and 706,835.98 is: 975,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,838.36 : 1,678,065.29 = 706,835.98 : x
  2. Step 2: Convert to fraction form
    1,215,838.36/1,678,065.29 = 706,835.98/x
  3. Step 3: Cross multiply
    1,215,838.36x = 1,678,065.29 × 706,835.98
  4. Step 4: Simplify right side
    1,215,838.36x = 1,186,116,923,761.13
  5. Step 5: Solve for x
    x = 1,186,116,923,761.13/1,215,838.36
  6. Step 6: Final answer
    x = 975,554.78

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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.