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Finding the Fourth Proportional to 540,421.34, 745,285.66 and 325,187.73

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Solution

The fourth proportional to 540,421.34, 745,285.66 and 325,187.73 is: 448,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,421.34 : 745,285.66 = 325,187.73 : x
  2. Step 2: Convert to fraction form
    540,421.34/745,285.66 = 325,187.73/x
  3. Step 3: Cross multiply
    540,421.34x = 745,285.66 × 325,187.73
  4. Step 4: Simplify right side
    540,421.34x = 242,357,751,163.98
  5. Step 5: Solve for x
    x = 242,357,751,163.98/540,421.34
  6. Step 6: Final answer
    x = 448,460.74

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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.