Home / 678,895.79-936,872.28-372,965.58

Finding the Fourth Proportional to 678,895.79, 936,872.28 and 372,965.58

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Solution

The fourth proportional to 678,895.79, 936,872.28 and 372,965.58 is: 514,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,895.79 : 936,872.28 = 372,965.58 : x
  2. Step 2: Convert to fraction form
    678,895.79/936,872.28 = 372,965.58/x
  3. Step 3: Cross multiply
    678,895.79x = 936,872.28 × 372,965.58
  4. Step 4: Simplify right side
    678,895.79x = 349,421,113,296.12
  5. Step 5: Solve for x
    x = 349,421,113,296.12/678,895.79
  6. Step 6: Final answer
    x = 514,690.36

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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.