Home / 828,499.76-1,143,318.80-465,923.50

Finding the Fourth Proportional to 828,499.76, 1,143,318.80 and 465,923.50

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Solution

The fourth proportional to 828,499.76, 1,143,318.80 and 465,923.50 is: 642,968.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,499.76 : 1,143,318.80 = 465,923.50 : x
  2. Step 2: Convert to fraction form
    828,499.76/1,143,318.80 = 465,923.50/x
  3. Step 3: Cross multiply
    828,499.76x = 1,143,318.80 × 465,923.50
  4. Step 4: Simplify right side
    828,499.76x = 532,699,096,911.80
  5. Step 5: Solve for x
    x = 532,699,096,911.80/828,499.76
  6. Step 6: Final answer
    x = 642,968.32

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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.