Home / 828,136.80-1,241,427.60-648,122.40

Finding the Fourth Proportional to 828,136.80, 1,241,427.60 and 648,122.40

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Solution

The fourth proportional to 828,136.80, 1,241,427.60 and 648,122.40 is: 971,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,136.80 : 1,241,427.60 = 648,122.40 : x
  2. Step 2: Convert to fraction form
    828,136.80/1,241,427.60 = 648,122.40/x
  3. Step 3: Cross multiply
    828,136.80x = 1,241,427.60 × 648,122.40
  4. Step 4: Simplify right side
    828,136.80x = 804,597,035,538.24
  5. Step 5: Solve for x
    x = 804,597,035,538.24/828,136.80
  6. Step 6: Final answer
    x = 971,575.03

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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.