Home / 767,989.08-1,059,825.60-428,457.42

Finding the Fourth Proportional to 767,989.08, 1,059,825.60 and 428,457.42

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Solution

The fourth proportional to 767,989.08, 1,059,825.60 and 428,457.42 is: 591,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,989.08 : 1,059,825.60 = 428,457.42 : x
  2. Step 2: Convert to fraction form
    767,989.08/1,059,825.60 = 428,457.42/x
  3. Step 3: Cross multiply
    767,989.08x = 1,059,825.60 × 428,457.42
  4. Step 4: Simplify right side
    767,989.08x = 454,090,142,225.95
  5. Step 5: Solve for x
    x = 454,090,142,225.95/767,989.08
  6. Step 6: Final answer
    x = 591,271.61

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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.