Home / 770,515.60-1,155,773.40-723,859.60

Finding the Fourth Proportional to 770,515.60, 1,155,773.40 and 723,859.60

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Solution

The fourth proportional to 770,515.60, 1,155,773.40 and 723,859.60 is: 1,085,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,515.60 : 1,155,773.40 = 723,859.60 : x
  2. Step 2: Convert to fraction form
    770,515.60/1,155,773.40 = 723,859.60/x
  3. Step 3: Cross multiply
    770,515.60x = 1,155,773.40 × 723,859.60
  4. Step 4: Simplify right side
    770,515.60x = 836,617,671,014.64
  5. Step 5: Solve for x
    x = 836,617,671,014.64/770,515.60
  6. Step 6: Final answer
    x = 1,085,789.40

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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.