Home / 987,416.92-1,362,636.30-557,697.88

Finding the Fourth Proportional to 987,416.92, 1,362,636.30 and 557,697.88

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Solution

The fourth proportional to 987,416.92, 1,362,636.30 and 557,697.88 is: 769,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,416.92 : 1,362,636.30 = 557,697.88 : x
  2. Step 2: Convert to fraction form
    987,416.92/1,362,636.30 = 557,697.88/x
  3. Step 3: Cross multiply
    987,416.92x = 1,362,636.30 × 557,697.88
  4. Step 4: Simplify right side
    987,416.92x = 759,939,375,721.04
  5. Step 5: Solve for x
    x = 759,939,375,721.04/987,416.92
  6. Step 6: Final answer
    x = 769,623.61

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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.