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Finding the Fourth Proportional to 579,308.42, 799,492.73 and 321,210.98

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Solution

The fourth proportional to 579,308.42, 799,492.73 and 321,210.98 is: 443,297.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,308.42 : 799,492.73 = 321,210.98 : x
  2. Step 2: Convert to fraction form
    579,308.42/799,492.73 = 321,210.98/x
  3. Step 3: Cross multiply
    579,308.42x = 799,492.73 × 321,210.98
  4. Step 4: Simplify right side
    579,308.42x = 256,805,837,702.66
  5. Step 5: Solve for x
    x = 256,805,837,702.66/579,308.42
  6. Step 6: Final answer
    x = 443,297.27

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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.