Home / 515,731.36-711,526.80-336,987.04

Finding the Fourth Proportional to 515,731.36, 711,526.80 and 336,987.04

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Solution

The fourth proportional to 515,731.36, 711,526.80 and 336,987.04 is: 464,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,731.36 : 711,526.80 = 336,987.04 : x
  2. Step 2: Convert to fraction form
    515,731.36/711,526.80 = 336,987.04/x
  3. Step 3: Cross multiply
    515,731.36x = 711,526.80 × 336,987.04
  4. Step 4: Simplify right side
    515,731.36x = 239,775,310,212.67
  5. Step 5: Solve for x
    x = 239,775,310,212.67/515,731.36
  6. Step 6: Final answer
    x = 464,922.88

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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.