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Finding the Fourth Proportional to 602,760.64, 831,810.72 and 330,830.32

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Solution

The fourth proportional to 602,760.64, 831,810.72 and 330,830.32 is: 456,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,760.64 : 831,810.72 = 330,830.32 : x
  2. Step 2: Convert to fraction form
    602,760.64/831,810.72 = 330,830.32/x
  3. Step 3: Cross multiply
    602,760.64x = 831,810.72 × 330,830.32
  4. Step 4: Simplify right side
    602,760.64x = 275,188,206,677.03
  5. Step 5: Solve for x
    x = 275,188,206,677.03/602,760.64
  6. Step 6: Final answer
    x = 456,546.41

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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.