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Finding the Fourth Proportional to 626,640.01, 864,764.31 and 340,160.29

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Solution

The fourth proportional to 626,640.01, 864,764.31 and 340,160.29 is: 469,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,640.01 : 864,764.31 = 340,160.29 : x
  2. Step 2: Convert to fraction form
    626,640.01/864,764.31 = 340,160.29/x
  3. Step 3: Cross multiply
    626,640.01x = 864,764.31 × 340,160.29
  4. Step 4: Simplify right side
    626,640.01x = 294,158,478,471.25
  5. Step 5: Solve for x
    x = 294,158,478,471.25/626,640.01
  6. Step 6: Final answer
    x = 469,421.80

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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.