Home / 885,905.20-1,328,857.80-880,656.40

Finding the Fourth Proportional to 885,905.20, 1,328,857.80 and 880,656.40

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Solution

The fourth proportional to 885,905.20, 1,328,857.80 and 880,656.40 is: 1,320,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,905.20 : 1,328,857.80 = 880,656.40 : x
  2. Step 2: Convert to fraction form
    885,905.20/1,328,857.80 = 880,656.40/x
  3. Step 3: Cross multiply
    885,905.20x = 1,328,857.80 × 880,656.40
  4. Step 4: Simplify right side
    885,905.20x = 1,170,267,126,259.92
  5. Step 5: Solve for x
    x = 1,170,267,126,259.92/885,905.20
  6. Step 6: Final answer
    x = 1,320,984.60

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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.