Home / 1,421,265.60-2,131,898.40-946,411.20

Finding the Fourth Proportional to 1,421,265.60, 2,131,898.40 and 946,411.20

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Solution

The fourth proportional to 1,421,265.60, 2,131,898.40 and 946,411.20 is: 1,419,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,265.60 : 2,131,898.40 = 946,411.20 : x
  2. Step 2: Convert to fraction form
    1,421,265.60/2,131,898.40 = 946,411.20/x
  3. Step 3: Cross multiply
    1,421,265.60x = 2,131,898.40 × 946,411.20
  4. Step 4: Simplify right side
    1,421,265.60x = 2,017,652,523,022.08
  5. Step 5: Solve for x
    x = 2,017,652,523,022.08/1,421,265.60
  6. Step 6: Final answer
    x = 1,419,616.80

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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.