Home / 909,650.48-1,254,813.72-638,122.64

Finding the Fourth Proportional to 909,650.48, 1,254,813.72 and 638,122.64

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Solution

The fourth proportional to 909,650.48, 1,254,813.72 and 638,122.64 is: 880,255.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,650.48 : 1,254,813.72 = 638,122.64 : x
  2. Step 2: Convert to fraction form
    909,650.48/1,254,813.72 = 638,122.64/x
  3. Step 3: Cross multiply
    909,650.48x = 1,254,813.72 × 638,122.64
  4. Step 4: Simplify right side
    909,650.48x = 800,725,043,714.62
  5. Step 5: Solve for x
    x = 800,725,043,714.62/909,650.48
  6. Step 6: Final answer
    x = 880,255.73

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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.