Home / 1,210,329.67-1,670,188.78-666,362.15

Finding the Fourth Proportional to 1,210,329.67, 1,670,188.78 and 666,362.15

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Solution

The fourth proportional to 1,210,329.67, 1,670,188.78 and 666,362.15 is: 919,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,329.67 : 1,670,188.78 = 666,362.15 : x
  2. Step 2: Convert to fraction form
    1,210,329.67/1,670,188.78 = 666,362.15/x
  3. Step 3: Cross multiply
    1,210,329.67x = 1,670,188.78 × 666,362.15
  4. Step 4: Simplify right side
    1,210,329.67x = 1,112,950,586,346.68
  5. Step 5: Solve for x
    x = 1,112,950,586,346.68/1,210,329.67
  6. Step 6: Final answer
    x = 919,543.34

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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.