Home / 890,133.03-1,335,409.56-291,091.86

Finding the Fourth Proportional to 890,133.03, 1,335,409.56 and 291,091.86

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Solution

The fourth proportional to 890,133.03, 1,335,409.56 and 291,091.86 is: 436,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,133.03 : 1,335,409.56 = 291,091.86 : x
  2. Step 2: Convert to fraction form
    890,133.03/1,335,409.56 = 291,091.86/x
  3. Step 3: Cross multiply
    890,133.03x = 1,335,409.56 × 291,091.86
  4. Step 4: Simplify right side
    890,133.03x = 388,726,852,682.18
  5. Step 5: Solve for x
    x = 388,726,852,682.18/890,133.03
  6. Step 6: Final answer
    x = 436,706.47

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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.