Home / 497,811.80-686,939.46-282,902.60

Finding the Fourth Proportional to 497,811.80, 686,939.46 and 282,902.60

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Solution

The fourth proportional to 497,811.80, 686,939.46 and 282,902.60 is: 390,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,811.80 : 686,939.46 = 282,902.60 : x
  2. Step 2: Convert to fraction form
    497,811.80/686,939.46 = 282,902.60/x
  3. Step 3: Cross multiply
    497,811.80x = 686,939.46 × 282,902.60
  4. Step 4: Simplify right side
    497,811.80x = 194,336,959,276.60
  5. Step 5: Solve for x
    x = 194,336,959,276.60/497,811.80
  6. Step 6: Final answer
    x = 390,382.39

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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.