Home / 765,246.54-1,055,754.99-478,657.74

Finding the Fourth Proportional to 765,246.54, 1,055,754.99 and 478,657.74

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Solution

The fourth proportional to 765,246.54, 1,055,754.99 and 478,657.74 is: 660,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,246.54 : 1,055,754.99 = 478,657.74 : x
  2. Step 2: Convert to fraction form
    765,246.54/1,055,754.99 = 478,657.74/x
  3. Step 3: Cross multiply
    765,246.54x = 1,055,754.99 × 478,657.74
  4. Step 4: Simplify right side
    765,246.54x = 505,345,297,507.12
  5. Step 5: Solve for x
    x = 505,345,297,507.12/765,246.54
  6. Step 6: Final answer
    x = 660,369.27

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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.