Home / 816,021.50-1,125,760.32-509,565.84

Finding the Fourth Proportional to 816,021.50, 1,125,760.32 and 509,565.84

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Solution

The fourth proportional to 816,021.50, 1,125,760.32 and 509,565.84 is: 702,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,021.50 : 1,125,760.32 = 509,565.84 : x
  2. Step 2: Convert to fraction form
    816,021.50/1,125,760.32 = 509,565.84/x
  3. Step 3: Cross multiply
    816,021.50x = 1,125,760.32 × 509,565.84
  4. Step 4: Simplify right side
    816,021.50x = 573,649,005,210.27
  5. Step 5: Solve for x
    x = 573,649,005,210.27/816,021.50
  6. Step 6: Final answer
    x = 702,982.71

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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.