Home / 1,240,866.83-1,712,437.79-689,605.76

Finding the Fourth Proportional to 1,240,866.83, 1,712,437.79 and 689,605.76

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Solution

The fourth proportional to 1,240,866.83, 1,712,437.79 and 689,605.76 is: 951,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,866.83 : 1,712,437.79 = 689,605.76 : x
  2. Step 2: Convert to fraction form
    1,240,866.83/1,712,437.79 = 689,605.76/x
  3. Step 3: Cross multiply
    1,240,866.83x = 1,712,437.79 × 689,605.76
  4. Step 4: Simplify right side
    1,240,866.83x = 1,180,906,951,615.45
  5. Step 5: Solve for x
    x = 1,180,906,951,615.45/1,240,866.83
  6. Step 6: Final answer
    x = 951,679.04

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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.