Home / 1,276,343.32-1,761,390.69-703,420.40

Finding the Fourth Proportional to 1,276,343.32, 1,761,390.69 and 703,420.40

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Solution

The fourth proportional to 1,276,343.32, 1,761,390.69 and 703,420.40 is: 970,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,343.32 : 1,761,390.69 = 703,420.40 : x
  2. Step 2: Convert to fraction form
    1,276,343.32/1,761,390.69 = 703,420.40/x
  3. Step 3: Cross multiply
    1,276,343.32x = 1,761,390.69 × 703,420.40
  4. Step 4: Simplify right side
    1,276,343.32x = 1,238,998,133,150.57
  5. Step 5: Solve for x
    x = 1,238,998,133,150.57/1,276,343.32
  6. Step 6: Final answer
    x = 970,740.49

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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.