Home / 777,534.68-1,072,993.08-438,112.28

Finding the Fourth Proportional to 777,534.68, 1,072,993.08 and 438,112.28

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Solution

The fourth proportional to 777,534.68, 1,072,993.08 and 438,112.28 is: 604,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,534.68 : 1,072,993.08 = 438,112.28 : x
  2. Step 2: Convert to fraction form
    777,534.68/1,072,993.08 = 438,112.28/x
  3. Step 3: Cross multiply
    777,534.68x = 1,072,993.08 × 438,112.28
  4. Step 4: Simplify right side
    777,534.68x = 470,091,444,703.02
  5. Step 5: Solve for x
    x = 470,091,444,703.02/777,534.68
  6. Step 6: Final answer
    x = 604,592.25

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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.