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Finding the Fourth Proportional to 540,178.89, 745,426.85 and 298,456.26

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Solution

The fourth proportional to 540,178.89, 745,426.85 and 298,456.26 is: 411,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,178.89 : 745,426.85 = 298,456.26 : x
  2. Step 2: Convert to fraction form
    540,178.89/745,426.85 = 298,456.26/x
  3. Step 3: Cross multiply
    540,178.89x = 745,426.85 × 298,456.26
  4. Step 4: Simplify right side
    540,178.89x = 222,477,308,262.30
  5. Step 5: Solve for x
    x = 222,477,308,262.30/540,178.89
  6. Step 6: Final answer
    x = 411,858.58

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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.