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Finding the Fourth Proportional to 630,598.72, 870,226.26 and 404,244.28

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Solution

The fourth proportional to 630,598.72, 870,226.26 and 404,244.28 is: 557,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,598.72 : 870,226.26 = 404,244.28 : x
  2. Step 2: Convert to fraction form
    630,598.72/870,226.26 = 404,244.28/x
  3. Step 3: Cross multiply
    630,598.72x = 870,226.26 × 404,244.28
  4. Step 4: Simplify right side
    630,598.72x = 351,783,987,910.79
  5. Step 5: Solve for x
    x = 351,783,987,910.79/630,598.72
  6. Step 6: Final answer
    x = 557,857.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.