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Finding the Fourth Proportional to 637,239.45, 879,390.69 and 350,757.48

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Solution

The fourth proportional to 637,239.45, 879,390.69 and 350,757.48 is: 484,045.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,239.45 : 879,390.69 = 350,757.48 : x
  2. Step 2: Convert to fraction form
    637,239.45/879,390.69 = 350,757.48/x
  3. Step 3: Cross multiply
    637,239.45x = 879,390.69 × 350,757.48
  4. Step 4: Simplify right side
    637,239.45x = 308,452,862,359.86
  5. Step 5: Solve for x
    x = 308,452,862,359.86/637,239.45
  6. Step 6: Final answer
    x = 484,045.46

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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.