Home / 1,187,950.40-1,639,341.60-651,406.40

Finding the Fourth Proportional to 1,187,950.40, 1,639,341.60 and 651,406.40

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Solution

The fourth proportional to 1,187,950.40, 1,639,341.60 and 651,406.40 is: 898,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,950.40 : 1,639,341.60 = 651,406.40 : x
  2. Step 2: Convert to fraction form
    1,187,950.40/1,639,341.60 = 651,406.40/x
  3. Step 3: Cross multiply
    1,187,950.40x = 1,639,341.60 × 651,406.40
  4. Step 4: Simplify right side
    1,187,950.40x = 1,067,877,610,026.24
  5. Step 5: Solve for x
    x = 1,067,877,610,026.24/1,187,950.40
  6. Step 6: Final answer
    x = 898,924.41

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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.