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Finding the Fourth Proportional to 488,915.80, 734,064.90 and 302,291.80

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Solution

The fourth proportional to 488,915.80, 734,064.90 and 302,291.80 is: 453,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,915.80 : 734,064.90 = 302,291.80 : x
  2. Step 2: Convert to fraction form
    488,915.80/734,064.90 = 302,291.80/x
  3. Step 3: Cross multiply
    488,915.80x = 734,064.90 × 302,291.80
  4. Step 4: Simplify right side
    488,915.80x = 221,901,799,937.82
  5. Step 5: Solve for x
    x = 221,901,799,937.82/488,915.80
  6. Step 6: Final answer
    x = 453,865.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.