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Finding the Fourth Proportional to 535,459.46, 738,879.30 and 320,594.00

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Solution

The fourth proportional to 535,459.46, 738,879.30 and 320,594.00 is: 442,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,459.46 : 738,879.30 = 320,594.00 : x
  2. Step 2: Convert to fraction form
    535,459.46/738,879.30 = 320,594.00/x
  3. Step 3: Cross multiply
    535,459.46x = 738,879.30 × 320,594.00
  4. Step 4: Simplify right side
    535,459.46x = 236,880,266,609.80
  5. Step 5: Solve for x
    x = 236,880,266,609.80/535,459.46
  6. Step 6: Final answer
    x = 442,386.93

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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.