Home / 742,423.36-1,024,544.89-402,891.61

Finding the Fourth Proportional to 742,423.36, 1,024,544.89 and 402,891.61

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Solution

The fourth proportional to 742,423.36, 1,024,544.89 and 402,891.61 is: 555,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,423.36 : 1,024,544.89 = 402,891.61 : x
  2. Step 2: Convert to fraction form
    742,423.36/1,024,544.89 = 402,891.61/x
  3. Step 3: Cross multiply
    742,423.36x = 1,024,544.89 × 402,891.61
  4. Step 4: Simplify right side
    742,423.36x = 412,780,540,249.37
  5. Step 5: Solve for x
    x = 412,780,540,249.37/742,423.36
  6. Step 6: Final answer
    x = 555,990.78

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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.