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Finding the Fourth Proportional to 978,178.40, 1,467,267.60 and 894,197.60

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Solution

The fourth proportional to 978,178.40, 1,467,267.60 and 894,197.60 is: 1,341,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,178.40 : 1,467,267.60 = 894,197.60 : x
  2. Step 2: Convert to fraction form
    978,178.40/1,467,267.60 = 894,197.60/x
  3. Step 3: Cross multiply
    978,178.40x = 1,467,267.60 × 894,197.60
  4. Step 4: Simplify right side
    978,178.40x = 1,312,027,166,477.76
  5. Step 5: Solve for x
    x = 1,312,027,166,477.76/978,178.40
  6. Step 6: Final answer
    x = 1,341,296.40

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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.