Home / 804,645.80-1,205,000.40-383,429.60

Finding the Fourth Proportional to 804,645.80, 1,205,000.40 and 383,429.60

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Solution

The fourth proportional to 804,645.80, 1,205,000.40 and 383,429.60 is: 574,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,645.80 : 1,205,000.40 = 383,429.60 : x
  2. Step 2: Convert to fraction form
    804,645.80/1,205,000.40 = 383,429.60/x
  3. Step 3: Cross multiply
    804,645.80x = 1,205,000.40 × 383,429.60
  4. Step 4: Simplify right side
    804,645.80x = 462,032,821,371.84
  5. Step 5: Solve for x
    x = 462,032,821,371.84/804,645.80
  6. Step 6: Final answer
    x = 574,206.47

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1.5x scale

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.