Home / 810,399.02-1,118,417.97-447,893.64

Finding the Fourth Proportional to 810,399.02, 1,118,417.97 and 447,893.64

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Solution

The fourth proportional to 810,399.02, 1,118,417.97 and 447,893.64 is: 618,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,399.02 : 1,118,417.97 = 447,893.64 : x
  2. Step 2: Convert to fraction form
    810,399.02/1,118,417.97 = 447,893.64/x
  3. Step 3: Cross multiply
    810,399.02x = 1,118,417.97 × 447,893.64
  4. Step 4: Simplify right side
    810,399.02x = 500,932,295,624.71
  5. Step 5: Solve for x
    x = 500,932,295,624.71/810,399.02
  6. Step 6: Final answer
    x = 618,130.43

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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.