Home / 639,482.13-882,485.51-353,002.41

Finding the Fourth Proportional to 639,482.13, 882,485.51 and 353,002.41

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Solution

The fourth proportional to 639,482.13, 882,485.51 and 353,002.41 is: 487,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,482.13 : 882,485.51 = 353,002.41 : x
  2. Step 2: Convert to fraction form
    639,482.13/882,485.51 = 353,002.41/x
  3. Step 3: Cross multiply
    639,482.13x = 882,485.51 × 353,002.41
  4. Step 4: Simplify right side
    639,482.13x = 311,519,510,055.07
  5. Step 5: Solve for x
    x = 311,519,510,055.07/639,482.13
  6. Step 6: Final answer
    x = 487,143.42

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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.