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Finding the Fourth Proportional to 552,444.90, 762,366.36 and 310,727.34

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Solution

The fourth proportional to 552,444.90, 762,366.36 and 310,727.34 is: 428,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,444.90 : 762,366.36 = 310,727.34 : x
  2. Step 2: Convert to fraction form
    552,444.90/762,366.36 = 310,727.34/x
  3. Step 3: Cross multiply
    552,444.90x = 762,366.36 × 310,727.34
  4. Step 4: Simplify right side
    552,444.90x = 236,888,071,148.28
  5. Step 5: Solve for x
    x = 236,888,071,148.28/552,444.90
  6. Step 6: Final answer
    x = 428,799.45

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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.