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Finding the Fourth Proportional to 540,188.27, 745,439.76 and 298,465.64

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Solution

The fourth proportional to 540,188.27, 745,439.76 and 298,465.64 is: 411,871.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,188.27 : 745,439.76 = 298,465.64 : x
  2. Step 2: Convert to fraction form
    540,188.27/745,439.76 = 298,465.64/x
  3. Step 3: Cross multiply
    540,188.27x = 745,439.76 × 298,465.64
  4. Step 4: Simplify right side
    540,188.27x = 222,488,151,322.65
  5. Step 5: Solve for x
    x = 222,488,151,322.65/540,188.27
  6. Step 6: Final answer
    x = 411,871.50

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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.