Home / 916,065.40-1,373,709.30-442,895.80

Finding the Fourth Proportional to 916,065.40, 1,373,709.30 and 442,895.80

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Solution

The fourth proportional to 916,065.40, 1,373,709.30 and 442,895.80 is: 664,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,065.40 : 1,373,709.30 = 442,895.80 : x
  2. Step 2: Convert to fraction form
    916,065.40/1,373,709.30 = 442,895.80/x
  3. Step 3: Cross multiply
    916,065.40x = 1,373,709.30 × 442,895.80
  4. Step 4: Simplify right side
    916,065.40x = 608,410,079,390.94
  5. Step 5: Solve for x
    x = 608,410,079,390.94/916,065.40
  6. Step 6: Final answer
    x = 664,155.72

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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.