Home / 879,512.72-1,214,485.06-553,369.52

Finding the Fourth Proportional to 879,512.72, 1,214,485.06 and 553,369.52

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Solution

The fourth proportional to 879,512.72, 1,214,485.06 and 553,369.52 is: 764,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,512.72 : 1,214,485.06 = 553,369.52 : x
  2. Step 2: Convert to fraction form
    879,512.72/1,214,485.06 = 553,369.52/x
  3. Step 3: Cross multiply
    879,512.72x = 1,214,485.06 × 553,369.52
  4. Step 4: Simplify right side
    879,512.72x = 672,059,014,699.37
  5. Step 5: Solve for x
    x = 672,059,014,699.37/879,512.72
  6. Step 6: Final answer
    x = 764,126.54

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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.