Home / 447,018.28-616,632.74-265,788.65

Finding the Fourth Proportional to 447,018.28, 616,632.74 and 265,788.65

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Solution

The fourth proportional to 447,018.28, 616,632.74 and 265,788.65 is: 366,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,018.28 : 616,632.74 = 265,788.65 : x
  2. Step 2: Convert to fraction form
    447,018.28/616,632.74 = 265,788.65/x
  3. Step 3: Cross multiply
    447,018.28x = 616,632.74 × 265,788.65
  4. Step 4: Simplify right side
    447,018.28x = 163,893,985,213.12
  5. Step 5: Solve for x
    x = 163,893,985,213.12/447,018.28
  6. Step 6: Final answer
    x = 366,638.22

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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.