Home / 830,020.15-1,145,458.56-462,530.44

Finding the Fourth Proportional to 830,020.15, 1,145,458.56 and 462,530.44

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Solution

The fourth proportional to 830,020.15, 1,145,458.56 and 462,530.44 is: 638,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,020.15 : 1,145,458.56 = 462,530.44 : x
  2. Step 2: Convert to fraction form
    830,020.15/1,145,458.56 = 462,530.44/x
  3. Step 3: Cross multiply
    830,020.15x = 1,145,458.56 × 462,530.44
  4. Step 4: Simplify right side
    830,020.15x = 529,809,451,758.57
  5. Step 5: Solve for x
    x = 529,809,451,758.57/830,020.15
  6. Step 6: Final answer
    x = 638,309.14

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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.