Home / 690,828.85-1,036,243.28-410,201.65

Finding the Fourth Proportional to 690,828.85, 1,036,243.28 and 410,201.65

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Solution

The fourth proportional to 690,828.85, 1,036,243.28 and 410,201.65 is: 615,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,828.85 : 1,036,243.28 = 410,201.65 : x
  2. Step 2: Convert to fraction form
    690,828.85/1,036,243.28 = 410,201.65/x
  3. Step 3: Cross multiply
    690,828.85x = 1,036,243.28 × 410,201.65
  4. Step 4: Simplify right side
    690,828.85x = 425,068,703,257.41
  5. Step 5: Solve for x
    x = 425,068,703,257.41/690,828.85
  6. Step 6: Final answer
    x = 615,302.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.