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Finding the Fourth Proportional to 980,841.36, 1,470,480 and 902,113.68

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Solution

The fourth proportional to 980,841.36, 1,470,480 and 902,113.68 is: 1,352,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,841.36 : 1,470,480 = 902,113.68 : x
  2. Step 2: Convert to fraction form
    980,841.36/1,470,480 = 902,113.68/x
  3. Step 3: Cross multiply
    980,841.36x = 1,470,480 × 902,113.68
  4. Step 4: Simplify right side
    980,841.36x = 1,326,540,124,166.40
  5. Step 5: Solve for x
    x = 1,326,540,124,166.40/980,841.36
  6. Step 6: Final answer
    x = 1,352,451.25

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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.