Home / 1,276,384.05-1,761,394.37-703,411.92

Finding the Fourth Proportional to 1,276,384.05, 1,761,394.37 and 703,411.92

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Solution

The fourth proportional to 1,276,384.05, 1,761,394.37 and 703,411.92 is: 970,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,384.05 : 1,761,394.37 = 703,411.92 : x
  2. Step 2: Convert to fraction form
    1,276,384.05/1,761,394.37 = 703,411.92/x
  3. Step 3: Cross multiply
    1,276,384.05x = 1,761,394.37 × 703,411.92
  4. Step 4: Simplify right side
    1,276,384.05x = 1,238,985,792,161.83
  5. Step 5: Solve for x
    x = 1,238,985,792,161.83/1,276,384.05
  6. Step 6: Final answer
    x = 970,699.84

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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.