Home / 915,729.22-1,263,682.38-507,830.23

Finding the Fourth Proportional to 915,729.22, 1,263,682.38 and 507,830.23

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Solution

The fourth proportional to 915,729.22, 1,263,682.38 and 507,830.23 is: 700,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,729.22 : 1,263,682.38 = 507,830.23 : x
  2. Step 2: Convert to fraction form
    915,729.22/1,263,682.38 = 507,830.23/x
  3. Step 3: Cross multiply
    915,729.22x = 1,263,682.38 × 507,830.23
  4. Step 4: Simplify right side
    915,729.22x = 641,736,113,682.35
  5. Step 5: Solve for x
    x = 641,736,113,682.35/915,729.22
  6. Step 6: Final answer
    x = 700,792.44

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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.