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Finding the Fourth Proportional to 448,411.60, 628,242.80 and 448,411.60

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Solution

The fourth proportional to 448,411.60, 628,242.80 and 448,411.60 is: 628,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,411.60 : 628,242.80 = 448,411.60 : x
  2. Step 2: Convert to fraction form
    448,411.60/628,242.80 = 448,411.60/x
  3. Step 3: Cross multiply
    448,411.60x = 628,242.80 × 448,411.60
  4. Step 4: Simplify right side
    448,411.60x = 281,711,359,136.48
  5. Step 5: Solve for x
    x = 281,711,359,136.48/448,411.60
  6. Step 6: Final answer
    x = 628,242.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.