Home / 827,137.34-1,240,916.50-485,869.36

Finding the Fourth Proportional to 827,137.34, 1,240,916.50 and 485,869.36

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Solution

The fourth proportional to 827,137.34, 1,240,916.50 and 485,869.36 is: 728,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,137.34 : 1,240,916.50 = 485,869.36 : x
  2. Step 2: Convert to fraction form
    827,137.34/1,240,916.50 = 485,869.36/x
  3. Step 3: Cross multiply
    827,137.34x = 1,240,916.50 × 485,869.36
  4. Step 4: Simplify right side
    827,137.34x = 602,923,303,173.49
  5. Step 5: Solve for x
    x = 602,923,303,173.49/827,137.34
  6. Step 6: Final answer
    x = 728,927.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.