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Finding the Fourth Proportional to 616,730.72, 851,230.64 and 401,496

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Solution

The fourth proportional to 616,730.72, 851,230.64 and 401,496 is: 554,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,730.72 : 851,230.64 = 401,496 : x
  2. Step 2: Convert to fraction form
    616,730.72/851,230.64 = 401,496/x
  3. Step 3: Cross multiply
    616,730.72x = 851,230.64 × 401,496
  4. Step 4: Simplify right side
    616,730.72x = 341,765,697,037.44
  5. Step 5: Solve for x
    x = 341,765,697,037.44/616,730.72
  6. Step 6: Final answer
    x = 554,157.08

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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.