Home / 909,879.88-1,255,625.58-501,985.02

Finding the Fourth Proportional to 909,879.88, 1,255,625.58 and 501,985.02

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Solution

The fourth proportional to 909,879.88, 1,255,625.58 and 501,985.02 is: 692,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,879.88 : 1,255,625.58 = 501,985.02 : x
  2. Step 2: Convert to fraction form
    909,879.88/1,255,625.58 = 501,985.02/x
  3. Step 3: Cross multiply
    909,879.88x = 1,255,625.58 × 501,985.02
  4. Step 4: Simplify right side
    909,879.88x = 630,305,231,888.81
  5. Step 5: Solve for x
    x = 630,305,231,888.81/909,879.88
  6. Step 6: Final answer
    x = 692,734.55

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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.