Home / 810,438.62-1,118,408.72-442,923.26

Finding the Fourth Proportional to 810,438.62, 1,118,408.72 and 442,923.26

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Solution

The fourth proportional to 810,438.62, 1,118,408.72 and 442,923.26 is: 611,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,438.62 : 1,118,408.72 = 442,923.26 : x
  2. Step 2: Convert to fraction form
    810,438.62/1,118,408.72 = 442,923.26/x
  3. Step 3: Cross multiply
    810,438.62x = 1,118,408.72 × 442,923.26
  4. Step 4: Simplify right side
    810,438.62x = 495,369,228,468.17
  5. Step 5: Solve for x
    x = 495,369,228,468.17/810,438.62
  6. Step 6: Final answer
    x = 611,235.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.