Home / 1,456,235.76-2,009,614.65-811,696.80

Finding the Fourth Proportional to 1,456,235.76, 2,009,614.65 and 811,696.80

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Solution

The fourth proportional to 1,456,235.76, 2,009,614.65 and 811,696.80 is: 1,120,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,235.76 : 2,009,614.65 = 811,696.80 : x
  2. Step 2: Convert to fraction form
    1,456,235.76/2,009,614.65 = 811,696.80/x
  3. Step 3: Cross multiply
    1,456,235.76x = 2,009,614.65 × 811,696.80
  4. Step 4: Simplify right side
    1,456,235.76x = 1,631,197,780,638.12
  5. Step 5: Solve for x
    x = 1,631,197,780,638.12/1,456,235.76
  6. Step 6: Final answer
    x = 1,120,146.77

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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.