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Finding the Fourth Proportional to 540,407.66, 745,656.57 and 325,559.57

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Solution

The fourth proportional to 540,407.66, 745,656.57 and 325,559.57 is: 449,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,407.66 : 745,656.57 = 325,559.57 : x
  2. Step 2: Convert to fraction form
    540,407.66/745,656.57 = 325,559.57/x
  3. Step 3: Cross multiply
    540,407.66x = 745,656.57 × 325,559.57
  4. Step 4: Simplify right side
    540,407.66x = 242,755,628,568.59
  5. Step 5: Solve for x
    x = 242,755,628,568.59/540,407.66
  6. Step 6: Final answer
    x = 449,208.35

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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.