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Finding the Fourth Proportional to 434,626.80, 651,065.40 and 301,657.20

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Solution

The fourth proportional to 434,626.80, 651,065.40 and 301,657.20 is: 451,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,626.80 : 651,065.40 = 301,657.20 : x
  2. Step 2: Convert to fraction form
    434,626.80/651,065.40 = 301,657.20/x
  3. Step 3: Cross multiply
    434,626.80x = 651,065.40 × 301,657.20
  4. Step 4: Simplify right side
    434,626.80x = 196,398,565,580.88
  5. Step 5: Solve for x
    x = 196,398,565,580.88/434,626.80
  6. Step 6: Final answer
    x = 451,878.64

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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.