Home / 676,890.81-934,109.49-370,979.34

Finding the Fourth Proportional to 676,890.81, 934,109.49 and 370,979.34

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Solution

The fourth proportional to 676,890.81, 934,109.49 and 370,979.34 is: 511,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,890.81 : 934,109.49 = 370,979.34 : x
  2. Step 2: Convert to fraction form
    676,890.81/934,109.49 = 370,979.34/x
  3. Step 3: Cross multiply
    676,890.81x = 934,109.49 × 370,979.34
  4. Step 4: Simplify right side
    676,890.81x = 346,535,322,087.94
  5. Step 5: Solve for x
    x = 346,535,322,087.94/676,890.81
  6. Step 6: Final answer
    x = 511,951.58

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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.