Home / 485,838.42-670,458.06-270,992.28

Finding the Fourth Proportional to 485,838.42, 670,458.06 and 270,992.28

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Solution

The fourth proportional to 485,838.42, 670,458.06 and 270,992.28 is: 373,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,838.42 : 670,458.06 = 270,992.28 : x
  2. Step 2: Convert to fraction form
    485,838.42/670,458.06 = 270,992.28/x
  3. Step 3: Cross multiply
    485,838.42x = 670,458.06 × 270,992.28
  4. Step 4: Simplify right side
    485,838.42x = 181,688,958,323.78
  5. Step 5: Solve for x
    x = 181,688,958,323.78/485,838.42
  6. Step 6: Final answer
    x = 373,969.93

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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.