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Finding the Fourth Proportional to 552,538.40, 762,497.48 and 307,519.07

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Solution

The fourth proportional to 552,538.40, 762,497.48 and 307,519.07 is: 424,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,538.40 : 762,497.48 = 307,519.07 : x
  2. Step 2: Convert to fraction form
    552,538.40/762,497.48 = 307,519.07/x
  3. Step 3: Cross multiply
    552,538.40x = 762,497.48 × 307,519.07
  4. Step 4: Simplify right side
    552,538.40x = 234,482,512,883.25
  5. Step 5: Solve for x
    x = 234,482,512,883.25/552,538.40
  6. Step 6: Final answer
    x = 424,373.25

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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.