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Finding the Fourth Proportional to 540,063.45, 745,276.83 and 298,343.75

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Solution

The fourth proportional to 540,063.45, 745,276.83 and 298,343.75 is: 411,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,063.45 : 745,276.83 = 298,343.75 : x
  2. Step 2: Convert to fraction form
    540,063.45/745,276.83 = 298,343.75/x
  3. Step 3: Cross multiply
    540,063.45x = 745,276.83 × 298,343.75
  4. Step 4: Simplify right side
    540,063.45x = 222,348,684,250.31
  5. Step 5: Solve for x
    x = 222,348,684,250.31/540,063.45
  6. Step 6: Final answer
    x = 411,708.45

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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.