Home / 1,140,078.40-1,708,989.60-539,984.80

Finding the Fourth Proportional to 1,140,078.40, 1,708,989.60 and 539,984.80

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Solution

The fourth proportional to 1,140,078.40, 1,708,989.60 and 539,984.80 is: 809,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,078.40 : 1,708,989.60 = 539,984.80 : x
  2. Step 2: Convert to fraction form
    1,140,078.40/1,708,989.60 = 539,984.80/x
  3. Step 3: Cross multiply
    1,140,078.40x = 1,708,989.60 × 539,984.80
  4. Step 4: Simplify right side
    1,140,078.40x = 922,828,407,358.08
  5. Step 5: Solve for x
    x = 922,828,407,358.08/1,140,078.40
  6. Step 6: Final answer
    x = 809,442.94

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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.