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Finding the Fourth Proportional to 540,158.64, 745,426.75 and 298,446.78

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Solution

The fourth proportional to 540,158.64, 745,426.75 and 298,446.78 is: 411,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,158.64 : 745,426.75 = 298,446.78 : x
  2. Step 2: Convert to fraction form
    540,158.64/745,426.75 = 298,446.78/x
  3. Step 3: Cross multiply
    540,158.64x = 745,426.75 × 298,446.78
  4. Step 4: Simplify right side
    540,158.64x = 222,470,213,263.37
  5. Step 5: Solve for x
    x = 222,470,213,263.37/540,158.64
  6. Step 6: Final answer
    x = 411,860.88

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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.