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Finding the Fourth Proportional to 290,460.90, 434,707.20 and 290,460.90

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Solution

The fourth proportional to 290,460.90, 434,707.20 and 290,460.90 is: 434,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,460.90 : 434,707.20 = 290,460.90 : x
  2. Step 2: Convert to fraction form
    290,460.90/434,707.20 = 290,460.90/x
  3. Step 3: Cross multiply
    290,460.90x = 434,707.20 × 290,460.90
  4. Step 4: Simplify right side
    290,460.90x = 126,265,444,548.48
  5. Step 5: Solve for x
    x = 126,265,444,548.48/290,460.90
  6. Step 6: Final answer
    x = 434,707.20

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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.