Home / 1,752,420.80-2,629,322.40-687,281.60

Finding the Fourth Proportional to 1,752,420.80, 2,629,322.40 and 687,281.60

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Solution

The fourth proportional to 1,752,420.80, 2,629,322.40 and 687,281.60 is: 1,031,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,420.80 : 2,629,322.40 = 687,281.60 : x
  2. Step 2: Convert to fraction form
    1,752,420.80/2,629,322.40 = 687,281.60/x
  3. Step 3: Cross multiply
    1,752,420.80x = 2,629,322.40 × 687,281.60
  4. Step 4: Simplify right side
    1,752,420.80x = 1,807,084,905,987.84
  5. Step 5: Solve for x
    x = 1,807,084,905,987.84/1,752,420.80
  6. Step 6: Final answer
    x = 1,031,193.48

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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.