Home / 1,228,673.38-1,695,429.12-712,319.58

Finding the Fourth Proportional to 1,228,673.38, 1,695,429.12 and 712,319.58

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Solution

The fourth proportional to 1,228,673.38, 1,695,429.12 and 712,319.58 is: 982,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,673.38 : 1,695,429.12 = 712,319.58 : x
  2. Step 2: Convert to fraction form
    1,228,673.38/1,695,429.12 = 712,319.58/x
  3. Step 3: Cross multiply
    1,228,673.38x = 1,695,429.12 × 712,319.58
  4. Step 4: Simplify right side
    1,228,673.38x = 1,207,687,358,678.17
  5. Step 5: Solve for x
    x = 1,207,687,358,678.17/1,228,673.38
  6. Step 6: Final answer
    x = 982,919.77

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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.