Home / 1,215,838.86-1,678,065.98-706,836.48

Finding the Fourth Proportional to 1,215,838.86, 1,678,065.98 and 706,836.48

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Solution

The fourth proportional to 1,215,838.86, 1,678,065.98 and 706,836.48 is: 975,555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,838.86 : 1,678,065.98 = 706,836.48 : x
  2. Step 2: Convert to fraction form
    1,215,838.86/1,678,065.98 = 706,836.48/x
  3. Step 3: Cross multiply
    1,215,838.86x = 1,678,065.98 × 706,836.48
  4. Step 4: Simplify right side
    1,215,838.86x = 1,186,118,246,976.77
  5. Step 5: Solve for x
    x = 1,186,118,246,976.77/1,215,838.86
  6. Step 6: Final answer
    x = 975,555.47

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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.