Home / 945,432-1,418,160.35-314,345.81

Finding the Fourth Proportional to 945,432, 1,418,160.35 and 314,345.81

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Solution

The fourth proportional to 945,432, 1,418,160.35 and 314,345.81 is: 471,522.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,432 : 1,418,160.35 = 314,345.81 : x
  2. Step 2: Convert to fraction form
    945,432/1,418,160.35 = 314,345.81/x
  3. Step 3: Cross multiply
    945,432x = 1,418,160.35 × 314,345.81
  4. Step 4: Simplify right side
    945,432x = 445,792,768,261.90
  5. Step 5: Solve for x
    x = 445,792,768,261.90/945,432
  6. Step 6: Final answer
    x = 471,522.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.