Home / 889,434.78-1,334,189.10-258,348.60

Finding the Fourth Proportional to 889,434.78, 1,334,189.10 and 258,348.60

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Solution

The fourth proportional to 889,434.78, 1,334,189.10 and 258,348.60 is: 387,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,434.78 : 1,334,189.10 = 258,348.60 : x
  2. Step 2: Convert to fraction form
    889,434.78/1,334,189.10 = 258,348.60/x
  3. Step 3: Cross multiply
    889,434.78x = 1,334,189.10 × 258,348.60
  4. Step 4: Simplify right side
    889,434.78x = 344,685,886,120.26
  5. Step 5: Solve for x
    x = 344,685,886,120.26/889,434.78
  6. Step 6: Final answer
    x = 387,533.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.