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Finding the Fourth Proportional to 984,989.10, 1,477,483.65 and 978,768.30

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Solution

The fourth proportional to 984,989.10, 1,477,483.65 and 978,768.30 is: 1,468,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,989.10 : 1,477,483.65 = 978,768.30 : x
  2. Step 2: Convert to fraction form
    984,989.10/1,477,483.65 = 978,768.30/x
  3. Step 3: Cross multiply
    984,989.10x = 1,477,483.65 × 978,768.30
  4. Step 4: Simplify right side
    984,989.10x = 1,446,114,160,388.30
  5. Step 5: Solve for x
    x = 1,446,114,160,388.30/984,989.10
  6. Step 6: Final answer
    x = 1,468,152.45

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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.