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Finding the Fourth Proportional to 637,298.41, 879,503.39 and 350,815.45

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Solution

The fourth proportional to 637,298.41, 879,503.39 and 350,815.45 is: 484,142.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,298.41 : 879,503.39 = 350,815.45 : x
  2. Step 2: Convert to fraction form
    637,298.41/879,503.39 = 350,815.45/x
  3. Step 3: Cross multiply
    637,298.41x = 879,503.39 × 350,815.45
  4. Step 4: Simplify right side
    637,298.41x = 308,543,377,539.38
  5. Step 5: Solve for x
    x = 308,543,377,539.38/637,298.41
  6. Step 6: Final answer
    x = 484,142.71

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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.