Home / 1,215,823.10-1,821,931.14-495,284.58

Finding the Fourth Proportional to 1,215,823.10, 1,821,931.14 and 495,284.58

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Solution

The fourth proportional to 1,215,823.10, 1,821,931.14 and 495,284.58 is: 742,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,823.10 : 1,821,931.14 = 495,284.58 : x
  2. Step 2: Convert to fraction form
    1,215,823.10/1,821,931.14 = 495,284.58/x
  3. Step 3: Cross multiply
    1,215,823.10x = 1,821,931.14 × 495,284.58
  4. Step 4: Simplify right side
    1,215,823.10x = 902,374,399,463.82
  5. Step 5: Solve for x
    x = 902,374,399,463.82/1,215,823.10
  6. Step 6: Final answer
    x = 742,192.19

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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.