Home / 1,989,927.79-2,746,109.45-1,130,535.20

Finding the Fourth Proportional to 1,989,927.79, 2,746,109.45 and 1,130,535.20

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Solution

The fourth proportional to 1,989,927.79, 2,746,109.45 and 1,130,535.20 is: 1,560,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,927.79 : 2,746,109.45 = 1,130,535.20 : x
  2. Step 2: Convert to fraction form
    1,989,927.79/2,746,109.45 = 1,130,535.20/x
  3. Step 3: Cross multiply
    1,989,927.79x = 2,746,109.45 × 1,130,535.20
  4. Step 4: Simplify right side
    1,989,927.79x = 3,104,573,405,969.25
  5. Step 5: Solve for x
    x = 3,104,573,405,969.25/1,989,927.79
  6. Step 6: Final answer
    x = 1,560,143.75

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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.