Home / 909,759.30-1,255,447.76-501,861.48

Finding the Fourth Proportional to 909,759.30, 1,255,447.76 and 501,861.48

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Solution

The fourth proportional to 909,759.30, 1,255,447.76 and 501,861.48 is: 692,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,759.30 : 1,255,447.76 = 501,861.48 : x
  2. Step 2: Convert to fraction form
    909,759.30/1,255,447.76 = 501,861.48/x
  3. Step 3: Cross multiply
    909,759.30x = 1,255,447.76 × 501,861.48
  4. Step 4: Simplify right side
    909,759.30x = 630,060,870,896.29
  5. Step 5: Solve for x
    x = 630,060,870,896.29/909,759.30
  6. Step 6: Final answer
    x = 692,557.77

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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.