Home / 1,384,075.80-1,910,021.96-772,192.16

Finding the Fourth Proportional to 1,384,075.80, 1,910,021.96 and 772,192.16

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Solution

The fourth proportional to 1,384,075.80, 1,910,021.96 and 772,192.16 is: 1,065,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,075.80 : 1,910,021.96 = 772,192.16 : x
  2. Step 2: Convert to fraction form
    1,384,075.80/1,910,021.96 = 772,192.16/x
  3. Step 3: Cross multiply
    1,384,075.80x = 1,910,021.96 × 772,192.16
  4. Step 4: Simplify right side
    1,384,075.80x = 1,474,903,969,528.76
  5. Step 5: Solve for x
    x = 1,474,903,969,528.76/1,384,075.80
  6. Step 6: Final answer
    x = 1,065,623.70

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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.