Home / 1,439,991.50-2,160,337.20-442,719.50

Finding the Fourth Proportional to 1,439,991.50, 2,160,337.20 and 442,719.50

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Solution

The fourth proportional to 1,439,991.50, 2,160,337.20 and 442,719.50 is: 664,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,991.50 : 2,160,337.20 = 442,719.50 : x
  2. Step 2: Convert to fraction form
    1,439,991.50/2,160,337.20 = 442,719.50/x
  3. Step 3: Cross multiply
    1,439,991.50x = 2,160,337.20 × 442,719.50
  4. Step 4: Simplify right side
    1,439,991.50x = 956,423,405,015.40
  5. Step 5: Solve for x
    x = 956,423,405,015.40/1,439,991.50
  6. Step 6: Final answer
    x = 664,186.84

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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.