Home / 1,142,043.40-1,575,977.78-658,628.68

Finding the Fourth Proportional to 1,142,043.40, 1,575,977.78 and 658,628.68

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Solution

The fourth proportional to 1,142,043.40, 1,575,977.78 and 658,628.68 is: 908,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,043.40 : 1,575,977.78 = 658,628.68 : x
  2. Step 2: Convert to fraction form
    1,142,043.40/1,575,977.78 = 658,628.68/x
  3. Step 3: Cross multiply
    1,142,043.40x = 1,575,977.78 × 658,628.68
  4. Step 4: Simplify right side
    1,142,043.40x = 1,037,984,164,950.73
  5. Step 5: Solve for x
    x = 1,037,984,164,950.73/1,142,043.40
  6. Step 6: Final answer
    x = 908,883.29

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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.