Home / 726,266.60-1,089,399.90-693,607.40

Finding the Fourth Proportional to 726,266.60, 1,089,399.90 and 693,607.40

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Solution

The fourth proportional to 726,266.60, 1,089,399.90 and 693,607.40 is: 1,040,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,266.60 : 1,089,399.90 = 693,607.40 : x
  2. Step 2: Convert to fraction form
    726,266.60/1,089,399.90 = 693,607.40/x
  3. Step 3: Cross multiply
    726,266.60x = 1,089,399.90 × 693,607.40
  4. Step 4: Simplify right side
    726,266.60x = 755,615,832,199.26
  5. Step 5: Solve for x
    x = 755,615,832,199.26/726,266.60
  6. Step 6: Final answer
    x = 1,040,411.10

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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.