Home / 1,989,933.60-2,984,900.40-660,064.80

Finding the Fourth Proportional to 1,989,933.60, 2,984,900.40 and 660,064.80

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Solution

The fourth proportional to 1,989,933.60, 2,984,900.40 and 660,064.80 is: 990,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,933.60 : 2,984,900.40 = 660,064.80 : x
  2. Step 2: Convert to fraction form
    1,989,933.60/2,984,900.40 = 660,064.80/x
  3. Step 3: Cross multiply
    1,989,933.60x = 2,984,900.40 × 660,064.80
  4. Step 4: Simplify right side
    1,989,933.60x = 1,970,227,685,545.92
  5. Step 5: Solve for x
    x = 1,970,227,685,545.92/1,989,933.60
  6. Step 6: Final answer
    x = 990,097.20

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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.