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Finding the Fourth Proportional to 863,092.88, 1,191,070.96 and 470,622.96

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Solution

The fourth proportional to 863,092.88, 1,191,070.96 and 470,622.96 is: 649,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,092.88 : 1,191,070.96 = 470,622.96 : x
  2. Step 2: Convert to fraction form
    863,092.88/1,191,070.96 = 470,622.96/x
  3. Step 3: Cross multiply
    863,092.88x = 1,191,070.96 × 470,622.96
  4. Step 4: Simplify right side
    863,092.88x = 560,545,340,765.24
  5. Step 5: Solve for x
    x = 560,545,340,765.24/863,092.88
  6. Step 6: Final answer
    x = 649,461.20

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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.