Home / 1,210,798.36-1,670,840.01-666,922.44

Finding the Fourth Proportional to 1,210,798.36, 1,670,840.01 and 666,922.44

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Solution

The fourth proportional to 1,210,798.36, 1,670,840.01 and 666,922.44 is: 920,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,798.36 : 1,670,840.01 = 666,922.44 : x
  2. Step 2: Convert to fraction form
    1,210,798.36/1,670,840.01 = 666,922.44/x
  3. Step 3: Cross multiply
    1,210,798.36x = 1,670,840.01 × 666,922.44
  4. Step 4: Simplify right side
    1,210,798.36x = 1,114,320,696,318.82
  5. Step 5: Solve for x
    x = 1,114,320,696,318.82/1,210,798.36
  6. Step 6: Final answer
    x = 920,318.97

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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.