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Finding the Fourth Proportional to 515,444.50, 711,624.46 and 336,907.54

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Solution

The fourth proportional to 515,444.50, 711,624.46 and 336,907.54 is: 465,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,444.50 : 711,624.46 = 336,907.54 : x
  2. Step 2: Convert to fraction form
    515,444.50/711,624.46 = 336,907.54/x
  3. Step 3: Cross multiply
    515,444.50x = 711,624.46 × 336,907.54
  4. Step 4: Simplify right side
    515,444.50x = 239,751,646,222.43
  5. Step 5: Solve for x
    x = 239,751,646,222.43/515,444.50
  6. Step 6: Final answer
    x = 465,135.72

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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.