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Finding the Fourth Proportional to 909,975.92, 1,255,763 and 502,103.12

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Solution

The fourth proportional to 909,975.92, 1,255,763 and 502,103.12 is: 692,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,975.92 : 1,255,763 = 502,103.12 : x
  2. Step 2: Convert to fraction form
    909,975.92/1,255,763 = 502,103.12/x
  3. Step 3: Cross multiply
    909,975.92x = 1,255,763 × 502,103.12
  4. Step 4: Simplify right side
    909,975.92x = 630,522,520,280.56
  5. Step 5: Solve for x
    x = 630,522,520,280.56/909,975.92
  6. Step 6: Final answer
    x = 692,900.23

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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.