Home / 639,524.87-882,547.14-353,047.31

Finding the Fourth Proportional to 639,524.87, 882,547.14 and 353,047.31

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Solution

The fourth proportional to 639,524.87, 882,547.14 and 353,047.31 is: 487,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,524.87 : 882,547.14 = 353,047.31 : x
  2. Step 2: Convert to fraction form
    639,524.87/882,547.14 = 353,047.31/x
  3. Step 3: Cross multiply
    639,524.87x = 882,547.14 × 353,047.31
  4. Step 4: Simplify right side
    639,524.87x = 311,580,887,547.22
  5. Step 5: Solve for x
    x = 311,580,887,547.22/639,524.87
  6. Step 6: Final answer
    x = 487,206.84

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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.