Home / 639,412.42-882,389.22-352,932.58

Finding the Fourth Proportional to 639,412.42, 882,389.22 and 352,932.58

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Solution

The fourth proportional to 639,412.42, 882,389.22 and 352,932.58 is: 487,047.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,412.42 : 882,389.22 = 352,932.58 : x
  2. Step 2: Convert to fraction form
    639,412.42/882,389.22 = 352,932.58/x
  3. Step 3: Cross multiply
    639,412.42x = 882,389.22 × 352,932.58
  4. Step 4: Simplify right side
    639,412.42x = 311,423,903,510.04
  5. Step 5: Solve for x
    x = 311,423,903,510.04/639,412.42
  6. Step 6: Final answer
    x = 487,047.01

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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.