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Finding the Fourth Proportional to 633,870.34, 874,736.04 and 347,389.74

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Solution

The fourth proportional to 633,870.34, 874,736.04 and 347,389.74 is: 479,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,870.34 : 874,736.04 = 347,389.74 : x
  2. Step 2: Convert to fraction form
    633,870.34/874,736.04 = 347,389.74/x
  3. Step 3: Cross multiply
    633,870.34x = 874,736.04 × 347,389.74
  4. Step 4: Simplify right side
    633,870.34x = 303,874,326,806.94
  5. Step 5: Solve for x
    x = 303,874,326,806.94/633,870.34
  6. Step 6: Final answer
    x = 479,395.09

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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.