Home / 770,561.99-1,063,488.36-443,812.20

Finding the Fourth Proportional to 770,561.99, 1,063,488.36 and 443,812.20

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Solution

The fourth proportional to 770,561.99, 1,063,488.36 and 443,812.20 is: 612,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,561.99 : 1,063,488.36 = 443,812.20 : x
  2. Step 2: Convert to fraction form
    770,561.99/1,063,488.36 = 443,812.20/x
  3. Step 3: Cross multiply
    770,561.99x = 1,063,488.36 × 443,812.20
  4. Step 4: Simplify right side
    770,561.99x = 471,989,108,725.99
  5. Step 5: Solve for x
    x = 471,989,108,725.99/770,561.99
  6. Step 6: Final answer
    x = 612,525.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.