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Finding the Fourth Proportional to 416,859.68, 575,464.73 and 279,275.51

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Solution

The fourth proportional to 416,859.68, 575,464.73 and 279,275.51 is: 385,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,859.68 : 575,464.73 = 279,275.51 : x
  2. Step 2: Convert to fraction form
    416,859.68/575,464.73 = 279,275.51/x
  3. Step 3: Cross multiply
    416,859.68x = 575,464.73 × 279,275.51
  4. Step 4: Simplify right side
    416,859.68x = 160,713,204,561.39
  5. Step 5: Solve for x
    x = 160,713,204,561.39/416,859.68
  6. Step 6: Final answer
    x = 385,533.10

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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.