Home / 726,006.40-1,089,009.60-411,078.40

Finding the Fourth Proportional to 726,006.40, 1,089,009.60 and 411,078.40

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Solution

The fourth proportional to 726,006.40, 1,089,009.60 and 411,078.40 is: 616,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,006.40 : 1,089,009.60 = 411,078.40 : x
  2. Step 2: Convert to fraction form
    726,006.40/1,089,009.60 = 411,078.40/x
  3. Step 3: Cross multiply
    726,006.40x = 1,089,009.60 × 411,078.40
  4. Step 4: Simplify right side
    726,006.40x = 447,668,323,952.64
  5. Step 5: Solve for x
    x = 447,668,323,952.64/726,006.40
  6. Step 6: Final answer
    x = 616,617.60

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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.