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Finding the Fourth Proportional to 388,925.60, 584,002.80 and 284,477.60

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Solution

The fourth proportional to 388,925.60, 584,002.80 and 284,477.60 is: 427,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,925.60 : 584,002.80 = 284,477.60 : x
  2. Step 2: Convert to fraction form
    388,925.60/584,002.80 = 284,477.60/x
  3. Step 3: Cross multiply
    388,925.60x = 584,002.80 × 284,477.60
  4. Step 4: Simplify right side
    388,925.60x = 166,135,714,937.28
  5. Step 5: Solve for x
    x = 166,135,714,937.28/388,925.60
  6. Step 6: Final answer
    x = 427,165.80

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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.