Home / 772,812.83-1,065,783.59-482,451.22

Finding the Fourth Proportional to 772,812.83, 1,065,783.59 and 482,451.22

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Solution

The fourth proportional to 772,812.83, 1,065,783.59 and 482,451.22 is: 665,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,812.83 : 1,065,783.59 = 482,451.22 : x
  2. Step 2: Convert to fraction form
    772,812.83/1,065,783.59 = 482,451.22/x
  3. Step 3: Cross multiply
    772,812.83x = 1,065,783.59 × 482,451.22
  4. Step 4: Simplify right side
    772,812.83x = 514,188,593,980.65
  5. Step 5: Solve for x
    x = 514,188,593,980.65/772,812.83
  6. Step 6: Final answer
    x = 665,346.86

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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.