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Finding the Fourth Proportional to 626,552.55, 864,643.50 and 340,072.77

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Solution

The fourth proportional to 626,552.55, 864,643.50 and 340,072.77 is: 469,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,552.55 : 864,643.50 = 340,072.77 : x
  2. Step 2: Convert to fraction form
    626,552.55/864,643.50 = 340,072.77/x
  3. Step 3: Cross multiply
    626,552.55x = 864,643.50 × 340,072.77
  4. Step 4: Simplify right side
    626,552.55x = 294,041,710,107.50
  5. Step 5: Solve for x
    x = 294,041,710,107.50/626,552.55
  6. Step 6: Final answer
    x = 469,300.96

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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.