Home / 989,643.40-1,483,298.70-740,033.80

Finding the Fourth Proportional to 989,643.40, 1,483,298.70 and 740,033.80

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Solution

The fourth proportional to 989,643.40, 1,483,298.70 and 740,033.80 is: 1,109,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,643.40 : 1,483,298.70 = 740,033.80 : x
  2. Step 2: Convert to fraction form
    989,643.40/1,483,298.70 = 740,033.80/x
  3. Step 3: Cross multiply
    989,643.40x = 1,483,298.70 × 740,033.80
  4. Step 4: Simplify right side
    989,643.40x = 1,097,691,173,496.06
  5. Step 5: Solve for x
    x = 1,097,691,173,496.06/989,643.40
  6. Step 6: Final answer
    x = 1,109,178.49

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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.