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Finding the Fourth Proportional to 626,534.85, 864,618.84 and 340,055.01

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Solution

The fourth proportional to 626,534.85, 864,618.84 and 340,055.01 is: 469,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,534.85 : 864,618.84 = 340,055.01 : x
  2. Step 2: Convert to fraction form
    626,534.85/864,618.84 = 340,055.01/x
  3. Step 3: Cross multiply
    626,534.85x = 864,618.84 × 340,055.01
  4. Step 4: Simplify right side
    626,534.85x = 294,017,968,282.39
  5. Step 5: Solve for x
    x = 294,017,968,282.39/626,534.85
  6. Step 6: Final answer
    x = 469,276.32

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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.