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Finding the Fourth Proportional to 667,688.33, 920,901.48 and 574,712.29

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Solution

The fourth proportional to 667,688.33, 920,901.48 and 574,712.29 is: 792,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,688.33 : 920,901.48 = 574,712.29 : x
  2. Step 2: Convert to fraction form
    667,688.33/920,901.48 = 574,712.29/x
  3. Step 3: Cross multiply
    667,688.33x = 920,901.48 × 574,712.29
  4. Step 4: Simplify right side
    667,688.33x = 529,253,396,457.49
  5. Step 5: Solve for x
    x = 529,253,396,457.49/667,688.33
  6. Step 6: Final answer
    x = 792,665.34

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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.