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Finding the Fourth Proportional to 447,019.79, 616,634.81 and 265,790.16

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Solution

The fourth proportional to 447,019.79, 616,634.81 and 265,790.16 is: 366,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,019.79 : 616,634.81 = 265,790.16 : x
  2. Step 2: Convert to fraction form
    447,019.79/616,634.81 = 265,790.16/x
  3. Step 3: Cross multiply
    447,019.79x = 616,634.81 × 265,790.16
  4. Step 4: Simplify right side
    447,019.79x = 163,895,463,482.52
  5. Step 5: Solve for x
    x = 163,895,463,482.52/447,019.79
  6. Step 6: Final answer
    x = 366,640.29

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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.