Home / 897,738-1,238,904.38-495,355.92

Finding the Fourth Proportional to 897,738, 1,238,904.38 and 495,355.92

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Solution

The fourth proportional to 897,738, 1,238,904.38 and 495,355.92 is: 683,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,738 : 1,238,904.38 = 495,355.92 : x
  2. Step 2: Convert to fraction form
    897,738/1,238,904.38 = 495,355.92/x
  3. Step 3: Cross multiply
    897,738x = 1,238,904.38 × 495,355.92
  4. Step 4: Simplify right side
    897,738x = 613,698,618,946.93
  5. Step 5: Solve for x
    x = 613,698,618,946.93/897,738
  6. Step 6: Final answer
    x = 683,605.48

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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.