Home / 678,899.48-936,897.79-372,995.67

Finding the Fourth Proportional to 678,899.48, 936,897.79 and 372,995.67

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Solution

The fourth proportional to 678,899.48, 936,897.79 and 372,995.67 is: 514,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,899.48 : 936,897.79 = 372,995.67 : x
  2. Step 2: Convert to fraction form
    678,899.48/936,897.79 = 372,995.67/x
  3. Step 3: Cross multiply
    678,899.48x = 936,897.79 × 372,995.67
  4. Step 4: Simplify right side
    678,899.48x = 349,458,818,902.57
  5. Step 5: Solve for x
    x = 349,458,818,902.57/678,899.48
  6. Step 6: Final answer
    x = 514,743.09

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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.