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Finding the Fourth Proportional to 633,915.04, 874,809.60 and 347,428.96

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Solution

The fourth proportional to 633,915.04, 874,809.60 and 347,428.96 is: 479,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,915.04 : 874,809.60 = 347,428.96 : x
  2. Step 2: Convert to fraction form
    633,915.04/874,809.60 = 347,428.96/x
  3. Step 3: Cross multiply
    633,915.04x = 874,809.60 × 347,428.96
  4. Step 4: Simplify right side
    633,915.04x = 303,934,189,526.02
  5. Step 5: Solve for x
    x = 303,934,189,526.02/633,915.04
  6. Step 6: Final answer
    x = 479,455.72

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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.