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Finding the Fourth Proportional to 552,627.82, 762,572.12 and 310,905.20

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Solution

The fourth proportional to 552,627.82, 762,572.12 and 310,905.20 is: 429,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,627.82 : 762,572.12 = 310,905.20 : x
  2. Step 2: Convert to fraction form
    552,627.82/762,572.12 = 310,905.20/x
  3. Step 3: Cross multiply
    552,627.82x = 762,572.12 × 310,905.20
  4. Step 4: Simplify right side
    552,627.82x = 237,087,637,483.02
  5. Step 5: Solve for x
    x = 237,087,637,483.02/552,627.82
  6. Step 6: Final answer
    x = 429,018.64

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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.