Home / 626,815.25-865,008.50-340,335.34

Finding the Fourth Proportional to 626,815.25, 865,008.50 and 340,335.34

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Solution

The fourth proportional to 626,815.25, 865,008.50 and 340,335.34 is: 469,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,815.25 : 865,008.50 = 340,335.34 : x
  2. Step 2: Convert to fraction form
    626,815.25/865,008.50 = 340,335.34/x
  3. Step 3: Cross multiply
    626,815.25x = 865,008.50 × 340,335.34
  4. Step 4: Simplify right side
    626,815.25x = 294,392,964,866.25
  5. Step 5: Solve for x
    x = 294,392,964,866.25/626,815.25
  6. Step 6: Final answer
    x = 469,664.65

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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.