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Finding the Fourth Proportional to 626,511.90, 864,587.24 and 340,031.98

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Solution

The fourth proportional to 626,511.90, 864,587.24 and 340,031.98 is: 469,244.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,511.90 : 864,587.24 = 340,031.98 : x
  2. Step 2: Convert to fraction form
    626,511.90/864,587.24 = 340,031.98/x
  3. Step 3: Cross multiply
    626,511.90x = 864,587.24 × 340,031.98
  4. Step 4: Simplify right side
    626,511.90x = 293,987,311,099.94
  5. Step 5: Solve for x
    x = 293,987,311,099.94/626,511.90
  6. Step 6: Final answer
    x = 469,244.58

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1.5x scale

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.