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Finding the Fourth Proportional to 626,533.06, 864,606.72 and 340,045.78

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Solution

The fourth proportional to 626,533.06, 864,606.72 and 340,045.78 is: 469,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,533.06 : 864,606.72 = 340,045.78 : x
  2. Step 2: Convert to fraction form
    626,533.06/864,606.72 = 340,045.78/x
  3. Step 3: Cross multiply
    626,533.06x = 864,606.72 × 340,045.78
  4. Step 4: Simplify right side
    626,533.06x = 294,005,866,495.64
  5. Step 5: Solve for x
    x = 294,005,866,495.64/626,533.06
  6. Step 6: Final answer
    x = 469,258.34

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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.