Home / 1,320,315.19-1,822,079.75-739,563.21

Finding the Fourth Proportional to 1,320,315.19, 1,822,079.75 and 739,563.21

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Solution

The fourth proportional to 1,320,315.19, 1,822,079.75 and 739,563.21 is: 1,020,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,315.19 : 1,822,079.75 = 739,563.21 : x
  2. Step 2: Convert to fraction form
    1,320,315.19/1,822,079.75 = 739,563.21/x
  3. Step 3: Cross multiply
    1,320,315.19x = 1,822,079.75 × 739,563.21
  4. Step 4: Simplify right side
    1,320,315.19x = 1,347,543,145,088.18
  5. Step 5: Solve for x
    x = 1,347,543,145,088.18/1,320,315.19
  6. Step 6: Final answer
    x = 1,020,622.32

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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.