Home / 781,226.37-1,078,123.10-458,933.65

Finding the Fourth Proportional to 781,226.37, 1,078,123.10 and 458,933.65

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Solution

The fourth proportional to 781,226.37, 1,078,123.10 and 458,933.65 is: 633,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,226.37 : 1,078,123.10 = 458,933.65 : x
  2. Step 2: Convert to fraction form
    781,226.37/1,078,123.10 = 458,933.65/x
  3. Step 3: Cross multiply
    781,226.37x = 1,078,123.10 × 458,933.65
  4. Step 4: Simplify right side
    781,226.37x = 494,786,964,442.34
  5. Step 5: Solve for x
    x = 494,786,964,442.34/781,226.37
  6. Step 6: Final answer
    x = 633,346.47

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Double scale
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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.