Home / 880,003.40-1,320,005.10-828,393.80

Finding the Fourth Proportional to 880,003.40, 1,320,005.10 and 828,393.80

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Solution

The fourth proportional to 880,003.40, 1,320,005.10 and 828,393.80 is: 1,242,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,003.40 : 1,320,005.10 = 828,393.80 : x
  2. Step 2: Convert to fraction form
    880,003.40/1,320,005.10 = 828,393.80/x
  3. Step 3: Cross multiply
    880,003.40x = 1,320,005.10 × 828,393.80
  4. Step 4: Simplify right side
    880,003.40x = 1,093,484,040,808.38
  5. Step 5: Solve for x
    x = 1,093,484,040,808.38/880,003.40
  6. Step 6: Final answer
    x = 1,242,590.70

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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.