Home / 1,057,371.48-1,455,484.86-912,636.42

Finding the Fourth Proportional to 1,057,371.48, 1,455,484.86 and 912,636.42

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Solution

The fourth proportional to 1,057,371.48, 1,455,484.86 and 912,636.42 is: 1,256,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,371.48 : 1,455,484.86 = 912,636.42 : x
  2. Step 2: Convert to fraction form
    1,057,371.48/1,455,484.86 = 912,636.42/x
  3. Step 3: Cross multiply
    1,057,371.48x = 1,455,484.86 × 912,636.42
  4. Step 4: Simplify right side
    1,057,371.48x = 1,328,328,491,994.60
  5. Step 5: Solve for x
    x = 1,328,328,491,994.60/1,057,371.48
  6. Step 6: Final answer
    x = 1,256,255.27

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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.