Home / 1,989,968-2,746,230-1,130,673.80

Finding the Fourth Proportional to 1,989,968, 2,746,230 and 1,130,673.80

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Solution

The fourth proportional to 1,989,968, 2,746,230 and 1,130,673.80 is: 1,560,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,968 : 2,746,230 = 1,130,673.80 : x
  2. Step 2: Convert to fraction form
    1,989,968/2,746,230 = 1,130,673.80/x
  3. Step 3: Cross multiply
    1,989,968x = 2,746,230 × 1,130,673.80
  4. Step 4: Simplify right side
    1,989,968x = 3,105,090,309,774
  5. Step 5: Solve for x
    x = 3,105,090,309,774/1,989,968
  6. Step 6: Final answer
    x = 1,560,371.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.