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Finding the Fourth Proportional to 595,485.36, 821,806.56 and 340,830.72

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Solution

The fourth proportional to 595,485.36, 821,806.56 and 340,830.72 is: 470,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,485.36 : 821,806.56 = 340,830.72 : x
  2. Step 2: Convert to fraction form
    595,485.36/821,806.56 = 340,830.72/x
  3. Step 3: Cross multiply
    595,485.36x = 821,806.56 × 340,830.72
  4. Step 4: Simplify right side
    595,485.36x = 280,096,921,545.52
  5. Step 5: Solve for x
    x = 280,096,921,545.52/595,485.36
  6. Step 6: Final answer
    x = 470,367.44

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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.