Home / 1,210,743.96-1,670,826.51-666,879.75

Finding the Fourth Proportional to 1,210,743.96, 1,670,826.51 and 666,879.75

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Solution

The fourth proportional to 1,210,743.96, 1,670,826.51 and 666,879.75 is: 920,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,743.96 : 1,670,826.51 = 666,879.75 : x
  2. Step 2: Convert to fraction form
    1,210,743.96/1,670,826.51 = 666,879.75/x
  3. Step 3: Cross multiply
    1,210,743.96x = 1,670,826.51 × 666,879.75
  4. Step 4: Simplify right side
    1,210,743.96x = 1,114,240,357,998.90
  5. Step 5: Solve for x
    x = 1,114,240,357,998.90/1,210,743.96
  6. Step 6: Final answer
    x = 920,293.96

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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.