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Finding the Fourth Proportional to 637,437.69, 879,664.14 and 347,049.27

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Solution

The fourth proportional to 637,437.69, 879,664.14 and 347,049.27 is: 478,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,437.69 : 879,664.14 = 347,049.27 : x
  2. Step 2: Convert to fraction form
    637,437.69/879,664.14 = 347,049.27/x
  3. Step 3: Cross multiply
    637,437.69x = 879,664.14 × 347,049.27
  4. Step 4: Simplify right side
    637,437.69x = 305,286,797,632.18
  5. Step 5: Solve for x
    x = 305,286,797,632.18/637,437.69
  6. Step 6: Final answer
    x = 478,928.06

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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.