Home / 897,722.75-1,238,857.40-495,314.75

Finding the Fourth Proportional to 897,722.75, 1,238,857.40 and 495,314.75

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Solution

The fourth proportional to 897,722.75, 1,238,857.40 and 495,314.75 is: 683,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,722.75 : 1,238,857.40 = 495,314.75 : x
  2. Step 2: Convert to fraction form
    897,722.75/1,238,857.40 = 495,314.75/x
  3. Step 3: Cross multiply
    897,722.75x = 1,238,857.40 × 495,314.75
  4. Step 4: Simplify right side
    897,722.75x = 613,624,343,366.65
  5. Step 5: Solve for x
    x = 613,624,343,366.65/897,722.75
  6. Step 6: Final answer
    x = 683,534.36

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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.