Home / 947,992.80-1,421,989.20-612,069.60

Finding the Fourth Proportional to 947,992.80, 1,421,989.20 and 612,069.60

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Solution

The fourth proportional to 947,992.80, 1,421,989.20 and 612,069.60 is: 918,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,992.80 : 1,421,989.20 = 612,069.60 : x
  2. Step 2: Convert to fraction form
    947,992.80/1,421,989.20 = 612,069.60/x
  3. Step 3: Cross multiply
    947,992.80x = 1,421,989.20 × 612,069.60
  4. Step 4: Simplify right side
    947,992.80x = 870,356,360,848.32
  5. Step 5: Solve for x
    x = 870,356,360,848.32/947,992.80
  6. Step 6: Final answer
    x = 918,104.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.