Home / 1,429,025.87-1,969,337.30-1,402,763.92

Finding the Fourth Proportional to 1,429,025.87, 1,969,337.30 and 1,402,763.92

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Solution

The fourth proportional to 1,429,025.87, 1,969,337.30 and 1,402,763.92 is: 1,933,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,025.87 : 1,969,337.30 = 1,402,763.92 : x
  2. Step 2: Convert to fraction form
    1,429,025.87/1,969,337.30 = 1,402,763.92/x
  3. Step 3: Cross multiply
    1,429,025.87x = 1,969,337.30 × 1,402,763.92
  4. Step 4: Simplify right side
    1,429,025.87x = 2,762,515,298,813.05
  5. Step 5: Solve for x
    x = 2,762,515,298,813.05/1,429,025.87
  6. Step 6: Final answer
    x = 1,933,145.75

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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.