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Finding the Fourth Proportional to 447,718.49, 617,845.71 and 243,767.07

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Solution

The fourth proportional to 447,718.49, 617,845.71 and 243,767.07 is: 336,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,718.49 : 617,845.71 = 243,767.07 : x
  2. Step 2: Convert to fraction form
    447,718.49/617,845.71 = 243,767.07/x
  3. Step 3: Cross multiply
    447,718.49x = 617,845.71 × 243,767.07
  4. Step 4: Simplify right side
    447,718.49x = 150,610,438,438.77
  5. Step 5: Solve for x
    x = 150,610,438,438.77/447,718.49
  6. Step 6: Final answer
    x = 336,395.40

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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.