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Finding the Fourth Proportional to 626,554.43, 864,646.10 and 340,074.63

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Solution

The fourth proportional to 626,554.43, 864,646.10 and 340,074.63 is: 469,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,554.43 : 864,646.10 = 340,074.63 : x
  2. Step 2: Convert to fraction form
    626,554.43/864,646.10 = 340,074.63/x
  3. Step 3: Cross multiply
    626,554.43x = 864,646.10 × 340,074.63
  4. Step 4: Simplify right side
    626,554.43x = 294,044,200,838.07
  5. Step 5: Solve for x
    x = 294,044,200,838.07/626,554.43
  6. Step 6: Final answer
    x = 469,303.53

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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.