Home / 497,623.62-686,504.03-316,238.29

Finding the Fourth Proportional to 497,623.62, 686,504.03 and 316,238.29

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Solution

The fourth proportional to 497,623.62, 686,504.03 and 316,238.29 is: 436,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,623.62 : 686,504.03 = 316,238.29 : x
  2. Step 2: Convert to fraction form
    497,623.62/686,504.03 = 316,238.29/x
  3. Step 3: Cross multiply
    497,623.62x = 686,504.03 × 316,238.29
  4. Step 4: Simplify right side
    497,623.62x = 217,098,860,525.31
  5. Step 5: Solve for x
    x = 217,098,860,525.31/497,623.62
  6. Step 6: Final answer
    x = 436,271.21

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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.