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Finding the Fourth Proportional to 648,579.60, 972,408.60 and 293,763.60

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Solution

The fourth proportional to 648,579.60, 972,408.60 and 293,763.60 is: 440,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,579.60 : 972,408.60 = 293,763.60 : x
  2. Step 2: Convert to fraction form
    648,579.60/972,408.60 = 293,763.60/x
  3. Step 3: Cross multiply
    648,579.60x = 972,408.60 × 293,763.60
  4. Step 4: Simplify right side
    648,579.60x = 285,658,251,006.96
  5. Step 5: Solve for x
    x = 285,658,251,006.96/648,579.60
  6. Step 6: Final answer
    x = 440,436.69

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1.5x scale

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.