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Finding the Fourth Proportional to 626,730.72, 864,874.98 and 340,248.30

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Solution

The fourth proportional to 626,730.72, 864,874.98 and 340,248.30 is: 469,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,730.72 : 864,874.98 = 340,248.30 : x
  2. Step 2: Convert to fraction form
    626,730.72/864,874.98 = 340,248.30/x
  3. Step 3: Cross multiply
    626,730.72x = 864,874.98 × 340,248.30
  4. Step 4: Simplify right side
    626,730.72x = 294,272,241,657.53
  5. Step 5: Solve for x
    x = 294,272,241,657.53/626,730.72
  6. Step 6: Final answer
    x = 469,535.37

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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.