Home / 680,463-939,031.54-374,532.84

Finding the Fourth Proportional to 680,463, 939,031.54 and 374,532.84

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Solution

The fourth proportional to 680,463, 939,031.54 and 374,532.84 is: 516,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,463 : 939,031.54 = 374,532.84 : x
  2. Step 2: Convert to fraction form
    680,463/939,031.54 = 374,532.84/x
  3. Step 3: Cross multiply
    680,463x = 939,031.54 × 374,532.84
  4. Step 4: Simplify right side
    680,463x = 351,698,149,525.77
  5. Step 5: Solve for x
    x = 351,698,149,525.77/680,463
  6. Step 6: Final answer
    x = 516,851.25

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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.