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Finding the Fourth Proportional to 552,259.10, 762,122.10 and 310,539.56

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Solution

The fourth proportional to 552,259.10, 762,122.10 and 310,539.56 is: 428,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,259.10 : 762,122.10 = 310,539.56 : x
  2. Step 2: Convert to fraction form
    552,259.10/762,122.10 = 310,539.56/x
  3. Step 3: Cross multiply
    552,259.10x = 762,122.10 × 310,539.56
  4. Step 4: Simplify right side
    552,259.10x = 236,669,061,600.28
  5. Step 5: Solve for x
    x = 236,669,061,600.28/552,259.10
  6. Step 6: Final answer
    x = 428,547.15

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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.