Home / 485,838.14-670,457.79-270,992.12

Finding the Fourth Proportional to 485,838.14, 670,457.79 and 270,992.12

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Solution

The fourth proportional to 485,838.14, 670,457.79 and 270,992.12 is: 373,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,838.14 : 670,457.79 = 270,992.12 : x
  2. Step 2: Convert to fraction form
    485,838.14/670,457.79 = 270,992.12/x
  3. Step 3: Cross multiply
    485,838.14x = 670,457.79 × 270,992.12
  4. Step 4: Simplify right side
    485,838.14x = 181,688,774,530.33
  5. Step 5: Solve for x
    x = 181,688,774,530.33/485,838.14
  6. Step 6: Final answer
    x = 373,969.77

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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.