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Finding the Fourth Proportional to 626,548.61, 864,638.07 and 340,068.83

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Solution

The fourth proportional to 626,548.61, 864,638.07 and 340,068.83 is: 469,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,548.61 : 864,638.07 = 340,068.83 : x
  2. Step 2: Convert to fraction form
    626,548.61/864,638.07 = 340,068.83/x
  3. Step 3: Cross multiply
    626,548.61x = 864,638.07 × 340,068.83
  4. Step 4: Simplify right side
    626,548.61x = 294,036,452,515.17
  5. Step 5: Solve for x
    x = 294,036,452,515.17/626,548.61
  6. Step 6: Final answer
    x = 469,295.51

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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.