Home / 829,440.96-1,242,659.52-380,537.28

Finding the Fourth Proportional to 829,440.96, 1,242,659.52 and 380,537.28

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Solution

The fourth proportional to 829,440.96, 1,242,659.52 and 380,537.28 is: 570,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,440.96 : 1,242,659.52 = 380,537.28 : x
  2. Step 2: Convert to fraction form
    829,440.96/1,242,659.52 = 380,537.28/x
  3. Step 3: Cross multiply
    829,440.96x = 1,242,659.52 × 380,537.28
  4. Step 4: Simplify right side
    829,440.96x = 472,878,273,706.91
  5. Step 5: Solve for x
    x = 472,878,273,706.91/829,440.96
  6. Step 6: Final answer
    x = 570,116.86

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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.