Home / 770,619.90-1,063,457.54-426,479.56

Finding the Fourth Proportional to 770,619.90, 1,063,457.54 and 426,479.56

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Solution

The fourth proportional to 770,619.90, 1,063,457.54 and 426,479.56 is: 588,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,619.90 : 1,063,457.54 = 426,479.56 : x
  2. Step 2: Convert to fraction form
    770,619.90/1,063,457.54 = 426,479.56/x
  3. Step 3: Cross multiply
    770,619.90x = 1,063,457.54 × 426,479.56
  4. Step 4: Simplify right side
    770,619.90x = 453,542,903,385.25
  5. Step 5: Solve for x
    x = 453,542,903,385.25/770,619.90
  6. Step 6: Final answer
    x = 588,542.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.