Home / 672,928.55-1,008,032.03-419,430.95

Finding the Fourth Proportional to 672,928.55, 1,008,032.03 and 419,430.95

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Solution

The fourth proportional to 672,928.55, 1,008,032.03 and 419,430.95 is: 628,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,928.55 : 1,008,032.03 = 419,430.95 : x
  2. Step 2: Convert to fraction form
    672,928.55/1,008,032.03 = 419,430.95/x
  3. Step 3: Cross multiply
    672,928.55x = 1,008,032.03 × 419,430.95
  4. Step 4: Simplify right side
    672,928.55x = 422,799,829,876.17
  5. Step 5: Solve for x
    x = 422,799,829,876.17/672,928.55
  6. Step 6: Final answer
    x = 628,298.25

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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.