Home / 1,186,236.90-1,778,043.15-654,139.80

Finding the Fourth Proportional to 1,186,236.90, 1,778,043.15 and 654,139.80

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Solution

The fourth proportional to 1,186,236.90, 1,778,043.15 and 654,139.80 is: 980,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,236.90 : 1,778,043.15 = 654,139.80 : x
  2. Step 2: Convert to fraction form
    1,186,236.90/1,778,043.15 = 654,139.80/x
  3. Step 3: Cross multiply
    1,186,236.90x = 1,778,043.15 × 654,139.80
  4. Step 4: Simplify right side
    1,186,236.90x = 1,163,088,790,532.37
  5. Step 5: Solve for x
    x = 1,163,088,790,532.37/1,186,236.90
  6. Step 6: Final answer
    x = 980,486.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.