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Finding the Fourth Proportional to 540,004.05, 745,200.91 and 298,303.49

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Solution

The fourth proportional to 540,004.05, 745,200.91 and 298,303.49 is: 411,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,004.05 : 745,200.91 = 298,303.49 : x
  2. Step 2: Convert to fraction form
    540,004.05/745,200.91 = 298,303.49/x
  3. Step 3: Cross multiply
    540,004.05x = 745,200.91 × 298,303.49
  4. Step 4: Simplify right side
    540,004.05x = 222,296,034,440.06
  5. Step 5: Solve for x
    x = 222,296,034,440.06/540,004.05
  6. Step 6: Final answer
    x = 411,656.24

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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.