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Finding the Fourth Proportional to 488,916.80, 734,066.40 and 302,292.80

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Solution

The fourth proportional to 488,916.80, 734,066.40 and 302,292.80 is: 453,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,916.80 : 734,066.40 = 302,292.80 : x
  2. Step 2: Convert to fraction form
    488,916.80/734,066.40 = 302,292.80/x
  3. Step 3: Cross multiply
    488,916.80x = 734,066.40 × 302,292.80
  4. Step 4: Simplify right side
    488,916.80x = 221,902,987,441.92
  5. Step 5: Solve for x
    x = 221,902,987,441.92/488,916.80
  6. Step 6: Final answer
    x = 453,866.56

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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.