Home / 724,815.91-1,000,218.56-402,546.77

Finding the Fourth Proportional to 724,815.91, 1,000,218.56 and 402,546.77

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Solution

The fourth proportional to 724,815.91, 1,000,218.56 and 402,546.77 is: 555,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,815.91 : 1,000,218.56 = 402,546.77 : x
  2. Step 2: Convert to fraction form
    724,815.91/1,000,218.56 = 402,546.77/x
  3. Step 3: Cross multiply
    724,815.91x = 1,000,218.56 × 402,546.77
  4. Step 4: Simplify right side
    724,815.91x = 402,634,749,623.37
  5. Step 5: Solve for x
    x = 402,634,749,623.37/724,815.91
  6. Step 6: Final answer
    x = 555,499.33

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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.