Home / 880,005.40-1,320,008.10-828,395.80

Finding the Fourth Proportional to 880,005.40, 1,320,008.10 and 828,395.80

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Solution

The fourth proportional to 880,005.40, 1,320,008.10 and 828,395.80 is: 1,242,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,005.40 : 1,320,008.10 = 828,395.80 : x
  2. Step 2: Convert to fraction form
    880,005.40/1,320,008.10 = 828,395.80/x
  3. Step 3: Cross multiply
    880,005.40x = 1,320,008.10 × 828,395.80
  4. Step 4: Simplify right side
    880,005.40x = 1,093,489,166,005.98
  5. Step 5: Solve for x
    x = 1,093,489,166,005.98/880,005.40
  6. Step 6: Final answer
    x = 1,242,593.70

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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.