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Finding the Fourth Proportional to 909,920.82, 1,255,695.06 and 502,027.50

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Solution

The fourth proportional to 909,920.82, 1,255,695.06 and 502,027.50 is: 692,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,920.82 : 1,255,695.06 = 502,027.50 : x
  2. Step 2: Convert to fraction form
    909,920.82/1,255,695.06 = 502,027.50/x
  3. Step 3: Cross multiply
    909,920.82x = 1,255,695.06 × 502,027.50
  4. Step 4: Simplify right side
    909,920.82x = 630,393,451,734.15
  5. Step 5: Solve for x
    x = 630,393,451,734.15/909,920.82
  6. Step 6: Final answer
    x = 692,800.34

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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.