Home / 945,999.70-1,418,999.55-384,745.30

Finding the Fourth Proportional to 945,999.70, 1,418,999.55 and 384,745.30

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Solution

The fourth proportional to 945,999.70, 1,418,999.55 and 384,745.30 is: 577,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,999.70 : 1,418,999.55 = 384,745.30 : x
  2. Step 2: Convert to fraction form
    945,999.70/1,418,999.55 = 384,745.30/x
  3. Step 3: Cross multiply
    945,999.70x = 1,418,999.55 × 384,745.30
  4. Step 4: Simplify right side
    945,999.70x = 545,953,407,564.62
  5. Step 5: Solve for x
    x = 545,953,407,564.62/945,999.70
  6. Step 6: Final answer
    x = 577,117.95

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1.5x scale

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.