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Finding the Fourth Proportional to 637,146, 879,250.95 and 350,660.34

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Solution

The fourth proportional to 637,146, 879,250.95 and 350,660.34 is: 483,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,146 : 879,250.95 = 350,660.34 : x
  2. Step 2: Convert to fraction form
    637,146/879,250.95 = 350,660.34/x
  3. Step 3: Cross multiply
    637,146x = 879,250.95 × 350,660.34
  4. Step 4: Simplify right side
    637,146x = 308,318,437,072.32
  5. Step 5: Solve for x
    x = 308,318,437,072.32/637,146
  6. Step 6: Final answer
    x = 483,905.47

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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.