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Finding the Fourth Proportional to 656,492.40, 984,738.60 and 375,778.80

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Solution

The fourth proportional to 656,492.40, 984,738.60 and 375,778.80 is: 563,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,492.40 : 984,738.60 = 375,778.80 : x
  2. Step 2: Convert to fraction form
    656,492.40/984,738.60 = 375,778.80/x
  3. Step 3: Cross multiply
    656,492.40x = 984,738.60 × 375,778.80
  4. Step 4: Simplify right side
    656,492.40x = 370,043,889,421.68
  5. Step 5: Solve for x
    x = 370,043,889,421.68/656,492.40
  6. Step 6: Final answer
    x = 563,668.20

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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.