Home / 777,533.18-1,072,991.01-438,110.78

Finding the Fourth Proportional to 777,533.18, 1,072,991.01 and 438,110.78

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Solution

The fourth proportional to 777,533.18, 1,072,991.01 and 438,110.78 is: 604,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,533.18 : 1,072,991.01 = 438,110.78 : x
  2. Step 2: Convert to fraction form
    777,533.18/1,072,991.01 = 438,110.78/x
  3. Step 3: Cross multiply
    777,533.18x = 1,072,991.01 × 438,110.78
  4. Step 4: Simplify right side
    777,533.18x = 470,088,928,324.09
  5. Step 5: Solve for x
    x = 470,088,928,324.09/777,533.18
  6. Step 6: Final answer
    x = 604,590.18

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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.