Home / 1,230,389.40-1,845,584.10-1,205,506.20

Finding the Fourth Proportional to 1,230,389.40, 1,845,584.10 and 1,205,506.20

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Solution

The fourth proportional to 1,230,389.40, 1,845,584.10 and 1,205,506.20 is: 1,808,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,389.40 : 1,845,584.10 = 1,205,506.20 : x
  2. Step 2: Convert to fraction form
    1,230,389.40/1,845,584.10 = 1,205,506.20/x
  3. Step 3: Cross multiply
    1,230,389.40x = 1,845,584.10 × 1,205,506.20
  4. Step 4: Simplify right side
    1,230,389.40x = 2,224,863,075,171.42
  5. Step 5: Solve for x
    x = 2,224,863,075,171.42/1,230,389.40
  6. Step 6: Final answer
    x = 1,808,259.30

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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.