Home / 739,889.69-1,021,218.38-434,064.30

Finding the Fourth Proportional to 739,889.69, 1,021,218.38 and 434,064.30

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Solution

The fourth proportional to 739,889.69, 1,021,218.38 and 434,064.30 is: 599,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,889.69 : 1,021,218.38 = 434,064.30 : x
  2. Step 2: Convert to fraction form
    739,889.69/1,021,218.38 = 434,064.30/x
  3. Step 3: Cross multiply
    739,889.69x = 1,021,218.38 × 434,064.30
  4. Step 4: Simplify right side
    739,889.69x = 443,274,439,091.51
  5. Step 5: Solve for x
    x = 443,274,439,091.51/739,889.69
  6. Step 6: Final answer
    x = 599,108.82

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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.