Home / 909,778.74-1,255,440.82-501,881.37

Finding the Fourth Proportional to 909,778.74, 1,255,440.82 and 501,881.37

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Solution

The fourth proportional to 909,778.74, 1,255,440.82 and 501,881.37 is: 692,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,778.74 : 1,255,440.82 = 501,881.37 : x
  2. Step 2: Convert to fraction form
    909,778.74/1,255,440.82 = 501,881.37/x
  3. Step 3: Cross multiply
    909,778.74x = 1,255,440.82 × 501,881.37
  4. Step 4: Simplify right side
    909,778.74x = 630,082,353,673.95
  5. Step 5: Solve for x
    x = 630,082,353,673.95/909,778.74
  6. Step 6: Final answer
    x = 692,566.59

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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.