Home / 1,102,140.61-1,653,228.43-419,037.86

Finding the Fourth Proportional to 1,102,140.61, 1,653,228.43 and 419,037.86

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Solution

The fourth proportional to 1,102,140.61, 1,653,228.43 and 419,037.86 is: 628,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,140.61 : 1,653,228.43 = 419,037.86 : x
  2. Step 2: Convert to fraction form
    1,102,140.61/1,653,228.43 = 419,037.86/x
  3. Step 3: Cross multiply
    1,102,140.61x = 1,653,228.43 × 419,037.86
  4. Step 4: Simplify right side
    1,102,140.61x = 692,765,306,483.84
  5. Step 5: Solve for x
    x = 692,765,306,483.84/1,102,140.61
  6. Step 6: Final answer
    x = 628,563.45

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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.