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Finding the Fourth Proportional to 603,435.32, 832,622.90 and 345,391.20

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Solution

The fourth proportional to 603,435.32, 832,622.90 and 345,391.20 is: 476,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,435.32 : 832,622.90 = 345,391.20 : x
  2. Step 2: Convert to fraction form
    603,435.32/832,622.90 = 345,391.20/x
  3. Step 3: Cross multiply
    603,435.32x = 832,622.90 × 345,391.20
  4. Step 4: Simplify right side
    603,435.32x = 287,580,622,578.48
  5. Step 5: Solve for x
    x = 287,580,622,578.48/603,435.32
  6. Step 6: Final answer
    x = 476,572.41

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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.