Home / 909,605.72-1,255,261.64-501,718.47

Finding the Fourth Proportional to 909,605.72, 1,255,261.64 and 501,718.47

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Solution

The fourth proportional to 909,605.72, 1,255,261.64 and 501,718.47 is: 692,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,605.72 : 1,255,261.64 = 501,718.47 : x
  2. Step 2: Convert to fraction form
    909,605.72/1,255,261.64 = 501,718.47/x
  3. Step 3: Cross multiply
    909,605.72x = 1,255,261.64 × 501,718.47
  4. Step 4: Simplify right side
    909,605.72x = 629,787,946,961.90
  5. Step 5: Solve for x
    x = 629,787,946,961.90/909,605.72
  6. Step 6: Final answer
    x = 692,374.66

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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.