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Finding the Fourth Proportional to 576,583.48, 864,878.30 and 378,160.40

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Solution

The fourth proportional to 576,583.48, 864,878.30 and 378,160.40 is: 567,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,583.48 : 864,878.30 = 378,160.40 : x
  2. Step 2: Convert to fraction form
    576,583.48/864,878.30 = 378,160.40/x
  3. Step 3: Cross multiply
    576,583.48x = 864,878.30 × 378,160.40
  4. Step 4: Simplify right side
    576,583.48x = 327,062,723,879.32
  5. Step 5: Solve for x
    x = 327,062,723,879.32/576,583.48
  6. Step 6: Final answer
    x = 567,242.62

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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.