Home / 680,725.18-939,393.18-374,795.25

Finding the Fourth Proportional to 680,725.18, 939,393.18 and 374,795.25

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Solution

The fourth proportional to 680,725.18, 939,393.18 and 374,795.25 is: 517,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,725.18 : 939,393.18 = 374,795.25 : x
  2. Step 2: Convert to fraction form
    680,725.18/939,393.18 = 374,795.25/x
  3. Step 3: Cross multiply
    680,725.18x = 939,393.18 × 374,795.25
  4. Step 4: Simplify right side
    680,725.18x = 352,080,096,772.57
  5. Step 5: Solve for x
    x = 352,080,096,772.57/680,725.18
  6. Step 6: Final answer
    x = 517,213.27

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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.