Home / 1,145,421.60-1,718,132.40-1,119,177.60

Finding the Fourth Proportional to 1,145,421.60, 1,718,132.40 and 1,119,177.60

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Solution

The fourth proportional to 1,145,421.60, 1,718,132.40 and 1,119,177.60 is: 1,678,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,421.60 : 1,718,132.40 = 1,119,177.60 : x
  2. Step 2: Convert to fraction form
    1,145,421.60/1,718,132.40 = 1,119,177.60/x
  3. Step 3: Cross multiply
    1,145,421.60x = 1,718,132.40 × 1,119,177.60
  4. Step 4: Simplify right side
    1,145,421.60x = 1,922,895,295,914.24
  5. Step 5: Solve for x
    x = 1,922,895,295,914.24/1,145,421.60
  6. Step 6: Final answer
    x = 1,678,766.40

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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.