Home / 828,163.50-1,142,858.76-465,588.98

Finding the Fourth Proportional to 828,163.50, 1,142,858.76 and 465,588.98

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Solution

The fourth proportional to 828,163.50, 1,142,858.76 and 465,588.98 is: 642,508.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,163.50 : 1,142,858.76 = 465,588.98 : x
  2. Step 2: Convert to fraction form
    828,163.50/1,142,858.76 = 465,588.98/x
  3. Step 3: Cross multiply
    828,163.50x = 1,142,858.76 × 465,588.98
  4. Step 4: Simplify right side
    828,163.50x = 532,102,443,241.28
  5. Step 5: Solve for x
    x = 532,102,443,241.28/828,163.50
  6. Step 6: Final answer
    x = 642,508.93

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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.