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Finding the Fourth Proportional to 637,813.24, 880,142.70 and 351,317.32

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Solution

The fourth proportional to 637,813.24, 880,142.70 and 351,317.32 is: 484,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,813.24 : 880,142.70 = 351,317.32 : x
  2. Step 2: Convert to fraction form
    637,813.24/880,142.70 = 351,317.32/x
  3. Step 3: Cross multiply
    637,813.24x = 880,142.70 × 351,317.32
  4. Step 4: Simplify right side
    637,813.24x = 309,209,374,581.56
  5. Step 5: Solve for x
    x = 309,209,374,581.56/637,813.24
  6. Step 6: Final answer
    x = 484,796.11

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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.