Home / 678,370.18-936,108.88-372,444.83

Finding the Fourth Proportional to 678,370.18, 936,108.88 and 372,444.83

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Solution

The fourth proportional to 678,370.18, 936,108.88 and 372,444.83 is: 513,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,370.18 : 936,108.88 = 372,444.83 : x
  2. Step 2: Convert to fraction form
    678,370.18/936,108.88 = 372,444.83/x
  3. Step 3: Cross multiply
    678,370.18x = 936,108.88 × 372,444.83
  4. Step 4: Simplify right side
    678,370.18x = 348,648,912,673.09
  5. Step 5: Solve for x
    x = 348,648,912,673.09/678,370.18
  6. Step 6: Final answer
    x = 513,950.83

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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.