Home / 916,069.40-1,373,715.30-442,899.80

Finding the Fourth Proportional to 916,069.40, 1,373,715.30 and 442,899.80

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Solution

The fourth proportional to 916,069.40, 1,373,715.30 and 442,899.80 is: 664,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,069.40 : 1,373,715.30 = 442,899.80 : x
  2. Step 2: Convert to fraction form
    916,069.40/1,373,715.30 = 442,899.80/x
  3. Step 3: Cross multiply
    916,069.40x = 1,373,715.30 × 442,899.80
  4. Step 4: Simplify right side
    916,069.40x = 608,418,231,626.94
  5. Step 5: Solve for x
    x = 608,418,231,626.94/916,069.40
  6. Step 6: Final answer
    x = 664,161.72

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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.