Home / 989,632.40-1,483,282.20-740,022.80

Finding the Fourth Proportional to 989,632.40, 1,483,282.20 and 740,022.80

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Solution

The fourth proportional to 989,632.40, 1,483,282.20 and 740,022.80 is: 1,109,161.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,632.40 : 1,483,282.20 = 740,022.80 : x
  2. Step 2: Convert to fraction form
    989,632.40/1,483,282.20 = 740,022.80/x
  3. Step 3: Cross multiply
    989,632.40x = 1,483,282.20 × 740,022.80
  4. Step 4: Simplify right side
    989,632.40x = 1,097,662,646,834.16
  5. Step 5: Solve for x
    x = 1,097,662,646,834.16/989,632.40
  6. Step 6: Final answer
    x = 1,109,161.99

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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.