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Finding the Fourth Proportional to 586,039.50, 808,734.87 and 317,767.50

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Solution

The fourth proportional to 586,039.50, 808,734.87 and 317,767.50 is: 438,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,039.50 : 808,734.87 = 317,767.50 : x
  2. Step 2: Convert to fraction form
    586,039.50/808,734.87 = 317,767.50/x
  3. Step 3: Cross multiply
    586,039.50x = 808,734.87 × 317,767.50
  4. Step 4: Simplify right side
    586,039.50x = 256,989,657,802.73
  5. Step 5: Solve for x
    x = 256,989,657,802.73/586,039.50
  6. Step 6: Final answer
    x = 438,519.35

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