Home / 497,623.37-686,503.69-316,238.04

Finding the Fourth Proportional to 497,623.37, 686,503.69 and 316,238.04

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Solution

The fourth proportional to 497,623.37, 686,503.69 and 316,238.04 is: 436,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,623.37 : 686,503.69 = 316,238.04 : x
  2. Step 2: Convert to fraction form
    497,623.37/686,503.69 = 316,238.04/x
  3. Step 3: Cross multiply
    497,623.37x = 686,503.69 × 316,238.04
  4. Step 4: Simplify right side
    497,623.37x = 217,098,579,797.18
  5. Step 5: Solve for x
    x = 217,098,579,797.18/497,623.37
  6. Step 6: Final answer
    x = 436,270.87

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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.