Home / 726,307.20-1,089,460.80-637,660.80

Finding the Fourth Proportional to 726,307.20, 1,089,460.80 and 637,660.80

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Solution

The fourth proportional to 726,307.20, 1,089,460.80 and 637,660.80 is: 956,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,307.20 : 1,089,460.80 = 637,660.80 : x
  2. Step 2: Convert to fraction form
    726,307.20/1,089,460.80 = 637,660.80/x
  3. Step 3: Cross multiply
    726,307.20x = 1,089,460.80 × 637,660.80
  4. Step 4: Simplify right side
    726,307.20x = 694,706,445,296.64
  5. Step 5: Solve for x
    x = 694,706,445,296.64/726,307.20
  6. Step 6: Final answer
    x = 956,491.20

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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.