Home / 497,121.60-686,282.40-336,820.80

Finding the Fourth Proportional to 497,121.60, 686,282.40 and 336,820.80

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Solution

The fourth proportional to 497,121.60, 686,282.40 and 336,820.80 is: 464,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,121.60 : 686,282.40 = 336,820.80 : x
  2. Step 2: Convert to fraction form
    497,121.60/686,282.40 = 336,820.80/x
  3. Step 3: Cross multiply
    497,121.60x = 686,282.40 × 336,820.80
  4. Step 4: Simplify right side
    497,121.60x = 231,154,186,993.92
  5. Step 5: Solve for x
    x = 231,154,186,993.92/497,121.60
  6. Step 6: Final answer
    x = 464,985.20

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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.