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Finding the Fourth Proportional to 616,410.83, 850,573.28 and 340,731.45

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Solution

The fourth proportional to 616,410.83, 850,573.28 and 340,731.45 is: 470,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,410.83 : 850,573.28 = 340,731.45 : x
  2. Step 2: Convert to fraction form
    616,410.83/850,573.28 = 340,731.45/x
  3. Step 3: Cross multiply
    616,410.83x = 850,573.28 × 340,731.45
  4. Step 4: Simplify right side
    616,410.83x = 289,817,069,759.96
  5. Step 5: Solve for x
    x = 289,817,069,759.96/616,410.83
  6. Step 6: Final answer
    x = 470,168.68

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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.