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Finding the Fourth Proportional to 675,066.32, 929,989.88 and 470,745.86

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Solution

The fourth proportional to 675,066.32, 929,989.88 and 470,745.86 is: 648,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,066.32 : 929,989.88 = 470,745.86 : x
  2. Step 2: Convert to fraction form
    675,066.32/929,989.88 = 470,745.86/x
  3. Step 3: Cross multiply
    675,066.32x = 929,989.88 × 470,745.86
  4. Step 4: Simplify right side
    675,066.32x = 437,788,885,851.90
  5. Step 5: Solve for x
    x = 437,788,885,851.90/675,066.32
  6. Step 6: Final answer
    x = 648,512.41

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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.