Home / 1,276,376.40-1,761,390.72-703,416.96

Finding the Fourth Proportional to 1,276,376.40, 1,761,390.72 and 703,416.96

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Solution

The fourth proportional to 1,276,376.40, 1,761,390.72 and 703,416.96 is: 970,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,376.40 : 1,761,390.72 = 703,416.96 : x
  2. Step 2: Convert to fraction form
    1,276,376.40/1,761,390.72 = 703,416.96/x
  3. Step 3: Cross multiply
    1,276,376.40x = 1,761,390.72 × 703,416.96
  4. Step 4: Simplify right side
    1,276,376.40x = 1,238,992,105,634.61
  5. Step 5: Solve for x
    x = 1,238,992,105,634.61/1,276,376.40
  6. Step 6: Final answer
    x = 970,710.60

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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.