Home / 1,276,279-1,761,276.58-703,339.72

Finding the Fourth Proportional to 1,276,279, 1,761,276.58 and 703,339.72

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Solution

The fourth proportional to 1,276,279, 1,761,276.58 and 703,339.72 is: 970,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,279 : 1,761,276.58 = 703,339.72 : x
  2. Step 2: Convert to fraction form
    1,276,279/1,761,276.58 = 703,339.72/x
  3. Step 3: Cross multiply
    1,276,279x = 1,761,276.58 × 703,339.72
  4. Step 4: Simplify right side
    1,276,279x = 1,238,775,776,619.76
  5. Step 5: Solve for x
    x = 1,238,775,776,619.76/1,276,279
  6. Step 6: Final answer
    x = 970,615.18

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1.5x scale

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.