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Finding the Fourth Proportional to 955,657, 1,433,485.50 and 290,809

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Solution

The fourth proportional to 955,657, 1,433,485.50 and 290,809 is: 436,213.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,657 : 1,433,485.50 = 290,809 : x
  2. Step 2: Convert to fraction form
    955,657/1,433,485.50 = 290,809/x
  3. Step 3: Cross multiply
    955,657x = 1,433,485.50 × 290,809
  4. Step 4: Simplify right side
    955,657x = 416,870,484,769.50
  5. Step 5: Solve for x
    x = 416,870,484,769.50/955,657
  6. Step 6: Final answer
    x = 436,213.50

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Similar ratio
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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.