Home / 1,285,338.22-1,928,173.18-432,041.90

Finding the Fourth Proportional to 1,285,338.22, 1,928,173.18 and 432,041.90

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Solution

The fourth proportional to 1,285,338.22, 1,928,173.18 and 432,041.90 is: 648,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,338.22 : 1,928,173.18 = 432,041.90 : x
  2. Step 2: Convert to fraction form
    1,285,338.22/1,928,173.18 = 432,041.90/x
  3. Step 3: Cross multiply
    1,285,338.22x = 1,928,173.18 × 432,041.90
  4. Step 4: Simplify right side
    1,285,338.22x = 833,051,604,216.24
  5. Step 5: Solve for x
    x = 833,051,604,216.24/1,285,338.22
  6. Step 6: Final answer
    x = 648,118.60

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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.