Home / 1,065,251.80-1,595,804.10-643,274.20

Finding the Fourth Proportional to 1,065,251.80, 1,595,804.10 and 643,274.20

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Solution

The fourth proportional to 1,065,251.80, 1,595,804.10 and 643,274.20 is: 963,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,251.80 : 1,595,804.10 = 643,274.20 : x
  2. Step 2: Convert to fraction form
    1,065,251.80/1,595,804.10 = 643,274.20/x
  3. Step 3: Cross multiply
    1,065,251.80x = 1,595,804.10 × 643,274.20
  4. Step 4: Simplify right side
    1,065,251.80x = 1,026,539,605,784.22
  5. Step 5: Solve for x
    x = 1,026,539,605,784.22/1,065,251.80
  6. Step 6: Final answer
    x = 963,659.11

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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.