Home / 849,662.12-1,172,396.53-487,019.25

Finding the Fourth Proportional to 849,662.12, 1,172,396.53 and 487,019.25

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Solution

The fourth proportional to 849,662.12, 1,172,396.53 and 487,019.25 is: 672,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,662.12 : 1,172,396.53 = 487,019.25 : x
  2. Step 2: Convert to fraction form
    849,662.12/1,172,396.53 = 487,019.25/x
  3. Step 3: Cross multiply
    849,662.12x = 1,172,396.53 × 487,019.25
  4. Step 4: Simplify right side
    849,662.12x = 570,979,679,351.98
  5. Step 5: Solve for x
    x = 570,979,679,351.98/849,662.12
  6. Step 6: Final answer
    x = 672,007.92

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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.