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Finding the Fourth Proportional to 665,673.94, 918,630.04 and 363,867.94

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Solution

The fourth proportional to 665,673.94, 918,630.04 and 363,867.94 is: 502,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,673.94 : 918,630.04 = 363,867.94 : x
  2. Step 2: Convert to fraction form
    665,673.94/918,630.04 = 363,867.94/x
  3. Step 3: Cross multiply
    665,673.94x = 918,630.04 × 363,867.94
  4. Step 4: Simplify right side
    665,673.94x = 334,260,017,070.67
  5. Step 5: Solve for x
    x = 334,260,017,070.67/665,673.94
  6. Step 6: Final answer
    x = 502,137.76

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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.