Home / 916,074.40-1,373,722.80-442,904.80

Finding the Fourth Proportional to 916,074.40, 1,373,722.80 and 442,904.80

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Solution

The fourth proportional to 916,074.40, 1,373,722.80 and 442,904.80 is: 664,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,074.40 : 1,373,722.80 = 442,904.80 : x
  2. Step 2: Convert to fraction form
    916,074.40/1,373,722.80 = 442,904.80/x
  3. Step 3: Cross multiply
    916,074.40x = 1,373,722.80 × 442,904.80
  4. Step 4: Simplify right side
    916,074.40x = 608,428,421,989.44
  5. Step 5: Solve for x
    x = 608,428,421,989.44/916,074.40
  6. Step 6: Final answer
    x = 664,169.22

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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.