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Finding the Fourth Proportional to 552,646.20, 829,406.70 and 215,848.20

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Solution

The fourth proportional to 552,646.20, 829,406.70 and 215,848.20 is: 323,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,646.20 : 829,406.70 = 215,848.20 : x
  2. Step 2: Convert to fraction form
    552,646.20/829,406.70 = 215,848.20/x
  3. Step 3: Cross multiply
    552,646.20x = 829,406.70 × 215,848.20
  4. Step 4: Simplify right side
    552,646.20x = 179,025,943,262.94
  5. Step 5: Solve for x
    x = 179,025,943,262.94/552,646.20
  6. Step 6: Final answer
    x = 323,943.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.