Home / 1,580,428.92-2,180,997.34-855,276.42

Finding the Fourth Proportional to 1,580,428.92, 2,180,997.34 and 855,276.42

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Solution

The fourth proportional to 1,580,428.92, 2,180,997.34 and 855,276.42 is: 1,180,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,428.92 : 2,180,997.34 = 855,276.42 : x
  2. Step 2: Convert to fraction form
    1,580,428.92/2,180,997.34 = 855,276.42/x
  3. Step 3: Cross multiply
    1,580,428.92x = 2,180,997.34 × 855,276.42
  4. Step 4: Simplify right side
    1,580,428.92x = 1,865,355,596,984.72
  5. Step 5: Solve for x
    x = 1,865,355,596,984.72/1,580,428.92
  6. Step 6: Final answer
    x = 1,180,284.40

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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.