Home / 810,883.45-1,119,042.52-448,330.72

Finding the Fourth Proportional to 810,883.45, 1,119,042.52 and 448,330.72

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Solution

The fourth proportional to 810,883.45, 1,119,042.52 and 448,330.72 is: 618,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,883.45 : 1,119,042.52 = 448,330.72 : x
  2. Step 2: Convert to fraction form
    810,883.45/1,119,042.52 = 448,330.72/x
  3. Step 3: Cross multiply
    810,883.45x = 1,119,042.52 × 448,330.72
  4. Step 4: Simplify right side
    810,883.45x = 501,701,133,107.00
  5. Step 5: Solve for x
    x = 501,701,133,107.00/810,883.45
  6. Step 6: Final answer
    x = 618,709.30

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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.