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Finding the Fourth Proportional to 448,266.60, 671,622.30 and 290,413.80

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Solution

The fourth proportional to 448,266.60, 671,622.30 and 290,413.80 is: 435,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,266.60 : 671,622.30 = 290,413.80 : x
  2. Step 2: Convert to fraction form
    448,266.60/671,622.30 = 290,413.80/x
  3. Step 3: Cross multiply
    448,266.60x = 671,622.30 × 290,413.80
  4. Step 4: Simplify right side
    448,266.60x = 195,048,384,307.74
  5. Step 5: Solve for x
    x = 195,048,384,307.74/448,266.60
  6. Step 6: Final answer
    x = 435,116.92

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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.