Home / 915,391.83-1,263,315.24-507,621.36

Finding the Fourth Proportional to 915,391.83, 1,263,315.24 and 507,621.36

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Solution

The fourth proportional to 915,391.83, 1,263,315.24 and 507,621.36 is: 700,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,391.83 : 1,263,315.24 = 507,621.36 : x
  2. Step 2: Convert to fraction form
    915,391.83/1,263,315.24 = 507,621.36/x
  3. Step 3: Cross multiply
    915,391.83x = 1,263,315.24 × 507,621.36
  4. Step 4: Simplify right side
    915,391.83x = 641,285,800,237.53
  5. Step 5: Solve for x
    x = 641,285,800,237.53/915,391.83
  6. Step 6: Final answer
    x = 700,558.80

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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.