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Finding the Fourth Proportional to 2,964,657.60, 4,446,986.40 and 970,315.20

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Solution

The fourth proportional to 2,964,657.60, 4,446,986.40 and 970,315.20 is: 1,455,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964,657.60 : 4,446,986.40 = 970,315.20 : x
  2. Step 2: Convert to fraction form
    2,964,657.60/4,446,986.40 = 970,315.20/x
  3. Step 3: Cross multiply
    2,964,657.60x = 4,446,986.40 × 970,315.20
  4. Step 4: Simplify right side
    2,964,657.60x = 4,314,978,498,113.28
  5. Step 5: Solve for x
    x = 4,314,978,498,113.28/2,964,657.60
  6. Step 6: Final answer
    x = 1,455,472.80

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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.