Home / 726,353.60-1,089,724.80-648,010.40

Finding the Fourth Proportional to 726,353.60, 1,089,724.80 and 648,010.40

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Solution

The fourth proportional to 726,353.60, 1,089,724.80 and 648,010.40 is: 972,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,353.60 : 1,089,724.80 = 648,010.40 : x
  2. Step 2: Convert to fraction form
    726,353.60/1,089,724.80 = 648,010.40/x
  3. Step 3: Cross multiply
    726,353.60x = 1,089,724.80 × 648,010.40
  4. Step 4: Simplify right side
    726,353.60x = 706,153,003,537.92
  5. Step 5: Solve for x
    x = 706,153,003,537.92/726,353.60
  6. Step 6: Final answer
    x = 972,189.03

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1.5x scale

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.