Home / 535,387.64-738,858.06-320,486.18

Finding the Fourth Proportional to 535,387.64, 738,858.06 and 320,486.18

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Solution

The fourth proportional to 535,387.64, 738,858.06 and 320,486.18 is: 442,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,387.64 : 738,858.06 = 320,486.18 : x
  2. Step 2: Convert to fraction form
    535,387.64/738,858.06 = 320,486.18/x
  3. Step 3: Cross multiply
    535,387.64x = 738,858.06 × 320,486.18
  4. Step 4: Simplify right side
    535,387.64x = 236,793,795,609.18
  5. Step 5: Solve for x
    x = 236,793,795,609.18/535,387.64
  6. Step 6: Final answer
    x = 442,284.76

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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.