Home / 885,816.80-1,328,919.60-286,805.60

Finding the Fourth Proportional to 885,816.80, 1,328,919.60 and 286,805.60

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Solution

The fourth proportional to 885,816.80, 1,328,919.60 and 286,805.60 is: 430,271.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,816.80 : 1,328,919.60 = 286,805.60 : x
  2. Step 2: Convert to fraction form
    885,816.80/1,328,919.60 = 286,805.60/x
  3. Step 3: Cross multiply
    885,816.80x = 1,328,919.60 × 286,805.60
  4. Step 4: Simplify right side
    885,816.80x = 381,141,583,229.76
  5. Step 5: Solve for x
    x = 381,141,583,229.76/885,816.80
  6. Step 6: Final answer
    x = 430,271.34

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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.