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Finding the Fourth Proportional to 626,534.05, 864,617.83 and 340,054.06

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Solution

The fourth proportional to 626,534.05, 864,617.83 and 340,054.06 is: 469,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,534.05 : 864,617.83 = 340,054.06 : x
  2. Step 2: Convert to fraction form
    626,534.05/864,617.83 = 340,054.06/x
  3. Step 3: Cross multiply
    626,534.05x = 864,617.83 × 340,054.06
  4. Step 4: Simplify right side
    626,534.05x = 294,016,803,439.89
  5. Step 5: Solve for x
    x = 294,016,803,439.89/626,534.05
  6. Step 6: Final answer
    x = 469,275.06

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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.