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Finding the Fourth Proportional to 670,778.58, 925,655.13 and 368,972.58

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Solution

The fourth proportional to 670,778.58, 925,655.13 and 368,972.58 is: 509,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,778.58 : 925,655.13 = 368,972.58 : x
  2. Step 2: Convert to fraction form
    670,778.58/925,655.13 = 368,972.58/x
  3. Step 3: Cross multiply
    670,778.58x = 925,655.13 × 368,972.58
  4. Step 4: Simplify right side
    670,778.58x = 341,541,361,506.34
  5. Step 5: Solve for x
    x = 341,541,361,506.34/670,778.58
  6. Step 6: Final answer
    x = 509,171.54

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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.