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Finding the Fourth Proportional to 615,064.40, 922,596.60 and 447,102.80

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Solution

The fourth proportional to 615,064.40, 922,596.60 and 447,102.80 is: 670,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,064.40 : 922,596.60 = 447,102.80 : x
  2. Step 2: Convert to fraction form
    615,064.40/922,596.60 = 447,102.80/x
  3. Step 3: Cross multiply
    615,064.40x = 922,596.60 × 447,102.80
  4. Step 4: Simplify right side
    615,064.40x = 412,495,523,130.48
  5. Step 5: Solve for x
    x = 412,495,523,130.48/615,064.40
  6. Step 6: Final answer
    x = 670,654.20

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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.