Home / 1,221,564.61-1,685,804.21-738,036.34

Finding the Fourth Proportional to 1,221,564.61, 1,685,804.21 and 738,036.34

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Solution

The fourth proportional to 1,221,564.61, 1,685,804.21 and 738,036.34 is: 1,018,517.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,564.61 : 1,685,804.21 = 738,036.34 : x
  2. Step 2: Convert to fraction form
    1,221,564.61/1,685,804.21 = 738,036.34/x
  3. Step 3: Cross multiply
    1,221,564.61x = 1,685,804.21 × 738,036.34
  4. Step 4: Simplify right side
    1,221,564.61x = 1,244,184,769,104.99
  5. Step 5: Solve for x
    x = 1,244,184,769,104.99/1,221,564.61
  6. Step 6: Final answer
    x = 1,018,517.37

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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.