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Finding the Fourth Proportional to 580,805.55, 801,521.87 and 322,706.16

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Solution

The fourth proportional to 580,805.55, 801,521.87 and 322,706.16 is: 445,340.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,805.55 : 801,521.87 = 322,706.16 : x
  2. Step 2: Convert to fraction form
    580,805.55/801,521.87 = 322,706.16/x
  3. Step 3: Cross multiply
    580,805.55x = 801,521.87 × 322,706.16
  4. Step 4: Simplify right side
    580,805.55x = 258,656,043,210.19
  5. Step 5: Solve for x
    x = 258,656,043,210.19/580,805.55
  6. Step 6: Final answer
    x = 445,340.17

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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.