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Finding the Fourth Proportional to 540,377.48, 745,749.24 and 310,969.73

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Solution

The fourth proportional to 540,377.48, 745,749.24 and 310,969.73 is: 429,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,377.48 : 745,749.24 = 310,969.73 : x
  2. Step 2: Convert to fraction form
    540,377.48/745,749.24 = 310,969.73/x
  3. Step 3: Cross multiply
    540,377.48x = 745,749.24 × 310,969.73
  4. Step 4: Simplify right side
    540,377.48x = 231,905,439,810.51
  5. Step 5: Solve for x
    x = 231,905,439,810.51/540,377.48
  6. Step 6: Final answer
    x = 429,154.52

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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.