Home / 689,040.08-950,661.60-402,353.36

Finding the Fourth Proportional to 689,040.08, 950,661.60 and 402,353.36

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Solution

The fourth proportional to 689,040.08, 950,661.60 and 402,353.36 is: 555,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,040.08 : 950,661.60 = 402,353.36 : x
  2. Step 2: Convert to fraction form
    689,040.08/950,661.60 = 402,353.36/x
  3. Step 3: Cross multiply
    689,040.08x = 950,661.60 × 402,353.36
  4. Step 4: Simplify right side
    689,040.08x = 382,501,888,982.98
  5. Step 5: Solve for x
    x = 382,501,888,982.98/689,040.08
  6. Step 6: Final answer
    x = 555,122.84

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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.