Home / 808,071.32-1,115,117.92-445,486.80

Finding the Fourth Proportional to 808,071.32, 1,115,117.92 and 445,486.80

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Solution

The fourth proportional to 808,071.32, 1,115,117.92 and 445,486.80 is: 614,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,071.32 : 1,115,117.92 = 445,486.80 : x
  2. Step 2: Convert to fraction form
    808,071.32/1,115,117.92 = 445,486.80/x
  3. Step 3: Cross multiply
    808,071.32x = 1,115,117.92 × 445,486.80
  4. Step 4: Simplify right side
    808,071.32x = 496,770,313,803.46
  5. Step 5: Solve for x
    x = 496,770,313,803.46/808,071.32
  6. Step 6: Final answer
    x = 614,760.48

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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.