Home / 897,771.50-1,238,950.65-495,389.42

Finding the Fourth Proportional to 897,771.50, 1,238,950.65 and 495,389.42

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Solution

The fourth proportional to 897,771.50, 1,238,950.65 and 495,389.42 is: 683,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,771.50 : 1,238,950.65 = 495,389.42 : x
  2. Step 2: Convert to fraction form
    897,771.50/1,238,950.65 = 495,389.42/x
  3. Step 3: Cross multiply
    897,771.50x = 1,238,950.65 × 495,389.42
  4. Step 4: Simplify right side
    897,771.50x = 613,763,043,912.12
  5. Step 5: Solve for x
    x = 613,763,043,912.12/897,771.50
  6. Step 6: Final answer
    x = 683,651.74

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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.