Home / 1,697,789.20-2,546,683.80-687,395.20

Finding the Fourth Proportional to 1,697,789.20, 2,546,683.80 and 687,395.20

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Solution

The fourth proportional to 1,697,789.20, 2,546,683.80 and 687,395.20 is: 1,031,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697,789.20 : 2,546,683.80 = 687,395.20 : x
  2. Step 2: Convert to fraction form
    1,697,789.20/2,546,683.80 = 687,395.20/x
  3. Step 3: Cross multiply
    1,697,789.20x = 2,546,683.80 × 687,395.20
  4. Step 4: Simplify right side
    1,697,789.20x = 1,750,578,220,037.76
  5. Step 5: Solve for x
    x = 1,750,578,220,037.76/1,697,789.20
  6. Step 6: Final answer
    x = 1,031,092.80

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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.