Home / 880,330.74-1,320,583.62-319,408.98

Finding the Fourth Proportional to 880,330.74, 1,320,583.62 and 319,408.98

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Solution

The fourth proportional to 880,330.74, 1,320,583.62 and 319,408.98 is: 479,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,330.74 : 1,320,583.62 = 319,408.98 : x
  2. Step 2: Convert to fraction form
    880,330.74/1,320,583.62 = 319,408.98/x
  3. Step 3: Cross multiply
    880,330.74x = 1,320,583.62 × 319,408.98
  4. Step 4: Simplify right side
    880,330.74x = 421,806,267,068.91
  5. Step 5: Solve for x
    x = 421,806,267,068.91/880,330.74
  6. Step 6: Final answer
    x = 479,145.22

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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.