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Finding the Fourth Proportional to 572,015.56, 789,381.56 and 317,366.16

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Solution

The fourth proportional to 572,015.56, 789,381.56 and 317,366.16 is: 437,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,015.56 : 789,381.56 = 317,366.16 : x
  2. Step 2: Convert to fraction form
    572,015.56/789,381.56 = 317,366.16/x
  3. Step 3: Cross multiply
    572,015.56x = 789,381.56 × 317,366.16
  4. Step 4: Simplify right side
    572,015.56x = 250,522,994,472.01
  5. Step 5: Solve for x
    x = 250,522,994,472.01/572,015.56
  6. Step 6: Final answer
    x = 437,965.35

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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.