Home / 1,075,870.80-1,615,361.40-811,486.80

Finding the Fourth Proportional to 1,075,870.80, 1,615,361.40 and 811,486.80

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Solution

The fourth proportional to 1,075,870.80, 1,615,361.40 and 811,486.80 is: 1,218,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,870.80 : 1,615,361.40 = 811,486.80 : x
  2. Step 2: Convert to fraction form
    1,075,870.80/1,615,361.40 = 811,486.80/x
  3. Step 3: Cross multiply
    1,075,870.80x = 1,615,361.40 × 811,486.80
  4. Step 4: Simplify right side
    1,075,870.80x = 1,310,844,453,329.52
  5. Step 5: Solve for x
    x = 1,310,844,453,329.52/1,075,870.80
  6. Step 6: Final answer
    x = 1,218,403.23

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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.