Home / 770,653.60-1,155,634.80-349,712.80

Finding the Fourth Proportional to 770,653.60, 1,155,634.80 and 349,712.80

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Solution

The fourth proportional to 770,653.60, 1,155,634.80 and 349,712.80 is: 524,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,653.60 : 1,155,634.80 = 349,712.80 : x
  2. Step 2: Convert to fraction form
    770,653.60/1,155,634.80 = 349,712.80/x
  3. Step 3: Cross multiply
    770,653.60x = 1,155,634.80 × 349,712.80
  4. Step 4: Simplify right side
    770,653.60x = 404,140,281,685.44
  5. Step 5: Solve for x
    x = 404,140,281,685.44/770,653.60
  6. Step 6: Final answer
    x = 524,412.37

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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.