Home / 740,115.36-1,021,040.73-434,285.28

Finding the Fourth Proportional to 740,115.36, 1,021,040.73 and 434,285.28

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Solution

The fourth proportional to 740,115.36, 1,021,040.73 and 434,285.28 is: 599,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,115.36 : 1,021,040.73 = 434,285.28 : x
  2. Step 2: Convert to fraction form
    740,115.36/1,021,040.73 = 434,285.28/x
  3. Step 3: Cross multiply
    740,115.36x = 1,021,040.73 × 434,285.28
  4. Step 4: Simplify right side
    740,115.36x = 443,422,959,319.45
  5. Step 5: Solve for x
    x = 443,422,959,319.45/740,115.36
  6. Step 6: Final answer
    x = 599,126.82

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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.