Home / 1,317,649.78-1,818,358.77-714,037.78

Finding the Fourth Proportional to 1,317,649.78, 1,818,358.77 and 714,037.78

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Solution

The fourth proportional to 1,317,649.78, 1,818,358.77 and 714,037.78 is: 985,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,649.78 : 1,818,358.77 = 714,037.78 : x
  2. Step 2: Convert to fraction form
    1,317,649.78/1,818,358.77 = 714,037.78/x
  3. Step 3: Cross multiply
    1,317,649.78x = 1,818,358.77 × 714,037.78
  4. Step 4: Simplify right side
    1,317,649.78x = 1,298,376,859,374.33
  5. Step 5: Solve for x
    x = 1,298,376,859,374.33/1,317,649.78
  6. Step 6: Final answer
    x = 985,373.26

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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.