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Finding the Fourth Proportional to 540,393.42, 745,756.98 and 298,679.81

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Solution

The fourth proportional to 540,393.42, 745,756.98 and 298,679.81 is: 412,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,393.42 : 745,756.98 = 298,679.81 : x
  2. Step 2: Convert to fraction form
    540,393.42/745,756.98 = 298,679.81/x
  3. Step 3: Cross multiply
    540,393.42x = 745,756.98 × 298,679.81
  4. Step 4: Simplify right side
    540,393.42x = 222,742,548,243.74
  5. Step 5: Solve for x
    x = 222,742,548,243.74/540,393.42
  6. Step 6: Final answer
    x = 412,185.90

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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.