Home / 1,205,480.10-1,808,220.12-939,439.64

Finding the Fourth Proportional to 1,205,480.10, 1,808,220.12 and 939,439.64

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Solution

The fourth proportional to 1,205,480.10, 1,808,220.12 and 939,439.64 is: 1,409,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,480.10 : 1,808,220.12 = 939,439.64 : x
  2. Step 2: Convert to fraction form
    1,205,480.10/1,808,220.12 = 939,439.64/x
  3. Step 3: Cross multiply
    1,205,480.10x = 1,808,220.12 × 939,439.64
  4. Step 4: Simplify right side
    1,205,480.10x = 1,698,713,658,573.56
  5. Step 5: Solve for x
    x = 1,698,713,658,573.56/1,205,480.10
  6. Step 6: Final answer
    x = 1,409,159.44

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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.