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Finding the Fourth Proportional to 539,903.98, 745,053.23 and 298,181.35

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Solution

The fourth proportional to 539,903.98, 745,053.23 and 298,181.35 is: 411,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,903.98 : 745,053.23 = 298,181.35 : x
  2. Step 2: Convert to fraction form
    539,903.98/745,053.23 = 298,181.35/x
  3. Step 3: Cross multiply
    539,903.98x = 745,053.23 × 298,181.35
  4. Step 4: Simplify right side
    539,903.98x = 222,160,972,727.09
  5. Step 5: Solve for x
    x = 222,160,972,727.09/539,903.98
  6. Step 6: Final answer
    x = 411,482.38

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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.