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Finding the Fourth Proportional to 459,594.40, 689,953.20 and 260,053.60

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Solution

The fourth proportional to 459,594.40, 689,953.20 and 260,053.60 is: 390,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,594.40 : 689,953.20 = 260,053.60 : x
  2. Step 2: Convert to fraction form
    459,594.40/689,953.20 = 260,053.60/x
  3. Step 3: Cross multiply
    459,594.40x = 689,953.20 × 260,053.60
  4. Step 4: Simplify right side
    459,594.40x = 179,424,813,491.52
  5. Step 5: Solve for x
    x = 179,424,813,491.52/459,594.40
  6. Step 6: Final answer
    x = 390,398.17

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