Home / 1,013,440.30-1,520,160.45-414,007.90

Finding the Fourth Proportional to 1,013,440.30, 1,520,160.45 and 414,007.90

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Solution

The fourth proportional to 1,013,440.30, 1,520,160.45 and 414,007.90 is: 621,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,440.30 : 1,520,160.45 = 414,007.90 : x
  2. Step 2: Convert to fraction form
    1,013,440.30/1,520,160.45 = 414,007.90/x
  3. Step 3: Cross multiply
    1,013,440.30x = 1,520,160.45 × 414,007.90
  4. Step 4: Simplify right side
    1,013,440.30x = 629,358,435,567.56
  5. Step 5: Solve for x
    x = 629,358,435,567.56/1,013,440.30
  6. Step 6: Final answer
    x = 621,011.85

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Double scale
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Similar ratio
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1.5x scale

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.