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Finding the Fourth Proportional to 535,357.42, 738,513.37 and 317,439.25

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Solution

The fourth proportional to 535,357.42, 738,513.37 and 317,439.25 is: 437,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,357.42 : 738,513.37 = 317,439.25 : x
  2. Step 2: Convert to fraction form
    535,357.42/738,513.37 = 317,439.25/x
  3. Step 3: Cross multiply
    535,357.42x = 738,513.37 × 317,439.25
  4. Step 4: Simplify right side
    535,357.42x = 234,433,130,287.77
  5. Step 5: Solve for x
    x = 234,433,130,287.77/535,357.42
  6. Step 6: Final answer
    x = 437,900.22

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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.