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Finding the Fourth Proportional to 637,197.67, 879,333.05 and 350,715.72

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Solution

The fourth proportional to 637,197.67, 879,333.05 and 350,715.72 is: 483,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,197.67 : 879,333.05 = 350,715.72 : x
  2. Step 2: Convert to fraction form
    637,197.67/879,333.05 = 350,715.72/x
  3. Step 3: Cross multiply
    637,197.67x = 879,333.05 × 350,715.72
  4. Step 4: Simplify right side
    637,197.67x = 308,395,923,750.55
  5. Step 5: Solve for x
    x = 308,395,923,750.55/637,197.67
  6. Step 6: Final answer
    x = 483,987.84

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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.