Home / 1,989,085.51-2,985,715.38-1,762,828.65

Finding the Fourth Proportional to 1,989,085.51, 2,985,715.38 and 1,762,828.65

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Solution

The fourth proportional to 1,989,085.51, 2,985,715.38 and 1,762,828.65 is: 2,646,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,085.51 : 2,985,715.38 = 1,762,828.65 : x
  2. Step 2: Convert to fraction form
    1,989,085.51/2,985,715.38 = 1,762,828.65/x
  3. Step 3: Cross multiply
    1,989,085.51x = 2,985,715.38 × 1,762,828.65
  4. Step 4: Simplify right side
    1,989,085.51x = 5,263,304,619,220.24
  5. Step 5: Solve for x
    x = 5,263,304,619,220.24/1,989,085.51
  6. Step 6: Final answer
    x = 2,646,092.68

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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.