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Finding the Fourth Proportional to 552,428.37, 762,343.62 and 310,710.84

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Solution

The fourth proportional to 552,428.37, 762,343.62 and 310,710.84 is: 428,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,428.37 : 762,343.62 = 310,710.84 : x
  2. Step 2: Convert to fraction form
    552,428.37/762,343.62 = 310,710.84/x
  3. Step 3: Cross multiply
    552,428.37x = 762,343.62 × 310,710.84
  4. Step 4: Simplify right side
    552,428.37x = 236,868,426,538.84
  5. Step 5: Solve for x
    x = 236,868,426,538.84/552,428.37
  6. Step 6: Final answer
    x = 428,776.72

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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.