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Finding the Fourth Proportional to 378,045.60, 570,568.80 and 378,045.60

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Solution

The fourth proportional to 378,045.60, 570,568.80 and 378,045.60 is: 570,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,045.60 : 570,568.80 = 378,045.60 : x
  2. Step 2: Convert to fraction form
    378,045.60/570,568.80 = 378,045.60/x
  3. Step 3: Cross multiply
    378,045.60x = 570,568.80 × 378,045.60
  4. Step 4: Simplify right side
    378,045.60x = 215,701,024,337.28
  5. Step 5: Solve for x
    x = 215,701,024,337.28/378,045.60
  6. Step 6: Final answer
    x = 570,568.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.