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Finding the Fourth Proportional to 459,075.60, 688,613.40 and 334,659.60

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Solution

The fourth proportional to 459,075.60, 688,613.40 and 334,659.60 is: 501,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,075.60 : 688,613.40 = 334,659.60 : x
  2. Step 2: Convert to fraction form
    459,075.60/688,613.40 = 334,659.60/x
  3. Step 3: Cross multiply
    459,075.60x = 688,613.40 × 334,659.60
  4. Step 4: Simplify right side
    459,075.60x = 230,451,084,998.64
  5. Step 5: Solve for x
    x = 230,451,084,998.64/459,075.60
  6. Step 6: Final answer
    x = 501,989.40

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