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Finding the Fourth Proportional to 540,326.09, 745,652.31 and 295,315.78

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Solution

The fourth proportional to 540,326.09, 745,652.31 and 295,315.78 is: 407,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,326.09 : 745,652.31 = 295,315.78 : x
  2. Step 2: Convert to fraction form
    540,326.09/745,652.31 = 295,315.78/x
  3. Step 3: Cross multiply
    540,326.09x = 745,652.31 × 295,315.78
  4. Step 4: Simplify right side
    540,326.09x = 220,202,889,808.19
  5. Step 5: Solve for x
    x = 220,202,889,808.19/540,326.09
  6. Step 6: Final answer
    x = 407,537.03

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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.