Home / 555,485.04-765,853.38-453,405.60

Finding the Fourth Proportional to 555,485.04, 765,853.38 and 453,405.60

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Solution

The fourth proportional to 555,485.04, 765,853.38 and 453,405.60 is: 625,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,485.04 : 765,853.38 = 453,405.60 : x
  2. Step 2: Convert to fraction form
    555,485.04/765,853.38 = 453,405.60/x
  3. Step 3: Cross multiply
    555,485.04x = 765,853.38 × 453,405.60
  4. Step 4: Simplify right side
    555,485.04x = 347,242,211,270.93
  5. Step 5: Solve for x
    x = 347,242,211,270.93/555,485.04
  6. Step 6: Final answer
    x = 625,115.32

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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.