Home / 3,121,502.02-4,308,221-1,815,158.32

Finding the Fourth Proportional to 3,121,502.02, 4,308,221 and 1,815,158.32

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Solution

The fourth proportional to 3,121,502.02, 4,308,221 and 1,815,158.32 is: 2,505,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,502.02 : 4,308,221 = 1,815,158.32 : x
  2. Step 2: Convert to fraction form
    3,121,502.02/4,308,221 = 1,815,158.32/x
  3. Step 3: Cross multiply
    3,121,502.02x = 4,308,221 × 1,815,158.32
  4. Step 4: Simplify right side
    3,121,502.02x = 7,820,103,192,548.72
  5. Step 5: Solve for x
    x = 7,820,103,192,548.72/3,121,502.02
  6. Step 6: Final answer
    x = 2,505,237.27

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1.5x scale

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.