Home / 816,064.80-1,221,764.40-501,136.80

Finding the Fourth Proportional to 816,064.80, 1,221,764.40 and 501,136.80

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Solution

The fourth proportional to 816,064.80, 1,221,764.40 and 501,136.80 is: 750,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,064.80 : 1,221,764.40 = 501,136.80 : x
  2. Step 2: Convert to fraction form
    816,064.80/1,221,764.40 = 501,136.80/x
  3. Step 3: Cross multiply
    816,064.80x = 1,221,764.40 × 501,136.80
  4. Step 4: Simplify right side
    816,064.80x = 612,271,101,769.92
  5. Step 5: Solve for x
    x = 612,271,101,769.92/816,064.80
  6. Step 6: Final answer
    x = 750,272.65

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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.