Home / 923,489.40-1,385,234.10-425,825.40

Finding the Fourth Proportional to 923,489.40, 1,385,234.10 and 425,825.40

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Solution

The fourth proportional to 923,489.40, 1,385,234.10 and 425,825.40 is: 638,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,489.40 : 1,385,234.10 = 425,825.40 : x
  2. Step 2: Convert to fraction form
    923,489.40/1,385,234.10 = 425,825.40/x
  3. Step 3: Cross multiply
    923,489.40x = 1,385,234.10 × 425,825.40
  4. Step 4: Simplify right side
    923,489.40x = 589,867,864,726.14
  5. Step 5: Solve for x
    x = 589,867,864,726.14/923,489.40
  6. Step 6: Final answer
    x = 638,738.10

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Similar ratio
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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.