Home / 1,354,935.66-1,869,676.47-782,160.36

Finding the Fourth Proportional to 1,354,935.66, 1,869,676.47 and 782,160.36

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Solution

The fourth proportional to 1,354,935.66, 1,869,676.47 and 782,160.36 is: 1,079,303.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,935.66 : 1,869,676.47 = 782,160.36 : x
  2. Step 2: Convert to fraction form
    1,354,935.66/1,869,676.47 = 782,160.36/x
  3. Step 3: Cross multiply
    1,354,935.66x = 1,869,676.47 × 782,160.36
  4. Step 4: Simplify right side
    1,354,935.66x = 1,462,386,820,858.73
  5. Step 5: Solve for x
    x = 1,462,386,820,858.73/1,354,935.66
  6. Step 6: Final answer
    x = 1,079,303.52

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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.