Home / 788,907.60-1,182,583.80-389,221.20

Finding the Fourth Proportional to 788,907.60, 1,182,583.80 and 389,221.20

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Solution

The fourth proportional to 788,907.60, 1,182,583.80 and 389,221.20 is: 583,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,907.60 : 1,182,583.80 = 389,221.20 : x
  2. Step 2: Convert to fraction form
    788,907.60/1,182,583.80 = 389,221.20/x
  3. Step 3: Cross multiply
    788,907.60x = 1,182,583.80 × 389,221.20
  4. Step 4: Simplify right side
    788,907.60x = 460,286,685,736.56
  5. Step 5: Solve for x
    x = 460,286,685,736.56/788,907.60
  6. Step 6: Final answer
    x = 583,448.16

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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.