Home / 1,420,308.92-1,960,089.90-775,734.32

Finding the Fourth Proportional to 1,420,308.92, 1,960,089.90 and 775,734.32

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Solution

The fourth proportional to 1,420,308.92, 1,960,089.90 and 775,734.32 is: 1,070,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,308.92 : 1,960,089.90 = 775,734.32 : x
  2. Step 2: Convert to fraction form
    1,420,308.92/1,960,089.90 = 775,734.32/x
  3. Step 3: Cross multiply
    1,420,308.92x = 1,960,089.90 × 775,734.32
  4. Step 4: Simplify right side
    1,420,308.92x = 1,520,509,005,715.37
  5. Step 5: Solve for x
    x = 1,520,509,005,715.37/1,420,308.92
  6. Step 6: Final answer
    x = 1,070,548.09

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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.