Home / 1,158,620.58-1,598,990.63-642,425.69

Finding the Fourth Proportional to 1,158,620.58, 1,598,990.63 and 642,425.69

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Solution

The fourth proportional to 1,158,620.58, 1,598,990.63 and 642,425.69 is: 886,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,620.58 : 1,598,990.63 = 642,425.69 : x
  2. Step 2: Convert to fraction form
    1,158,620.58/1,598,990.63 = 642,425.69/x
  3. Step 3: Cross multiply
    1,158,620.58x = 1,598,990.63 × 642,425.69
  4. Step 4: Simplify right side
    1,158,620.58x = 1,027,232,659,566.63
  5. Step 5: Solve for x
    x = 1,027,232,659,566.63/1,158,620.58
  6. Step 6: Final answer
    x = 886,599.70

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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.