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Finding the Fourth Proportional to 630,904.80, 946,011.60 and 256,504.80

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Solution

The fourth proportional to 630,904.80, 946,011.60 and 256,504.80 is: 384,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,904.80 : 946,011.60 = 256,504.80 : x
  2. Step 2: Convert to fraction form
    630,904.80/946,011.60 = 256,504.80/x
  3. Step 3: Cross multiply
    630,904.80x = 946,011.60 × 256,504.80
  4. Step 4: Simplify right side
    630,904.80x = 242,656,516,255.68
  5. Step 5: Solve for x
    x = 242,656,516,255.68/630,904.80
  6. Step 6: Final answer
    x = 384,616.69

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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.