Home / 880,840.60-1,320,677.70-319,802.20

Finding the Fourth Proportional to 880,840.60, 1,320,677.70 and 319,802.20

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Solution

The fourth proportional to 880,840.60, 1,320,677.70 and 319,802.20 is: 479,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,840.60 : 1,320,677.70 = 319,802.20 : x
  2. Step 2: Convert to fraction form
    880,840.60/1,320,677.70 = 319,802.20/x
  3. Step 3: Cross multiply
    880,840.60x = 1,320,677.70 × 319,802.20
  4. Step 4: Simplify right side
    880,840.60x = 422,355,633,950.94
  5. Step 5: Solve for x
    x = 422,355,633,950.94/880,840.60
  6. Step 6: Final answer
    x = 479,491.56

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1.5x scale

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.