Home / 920,826.16-1,270,571.70-512,917.60

Finding the Fourth Proportional to 920,826.16, 1,270,571.70 and 512,917.60

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Solution

The fourth proportional to 920,826.16, 1,270,571.70 and 512,917.60 is: 707,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,826.16 : 1,270,571.70 = 512,917.60 : x
  2. Step 2: Convert to fraction form
    920,826.16/1,270,571.70 = 512,917.60/x
  3. Step 3: Cross multiply
    920,826.16x = 1,270,571.70 × 512,917.60
  4. Step 4: Simplify right side
    920,826.16x = 651,698,586,991.92
  5. Step 5: Solve for x
    x = 651,698,586,991.92/920,826.16
  6. Step 6: Final answer
    x = 707,732.49

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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.