Home / 813,979.50-1,123,291.72-456,283.50

Finding the Fourth Proportional to 813,979.50, 1,123,291.72 and 456,283.50

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Solution

The fourth proportional to 813,979.50, 1,123,291.72 and 456,283.50 is: 629,671.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,979.50 : 1,123,291.72 = 456,283.50 : x
  2. Step 2: Convert to fraction form
    813,979.50/1,123,291.72 = 456,283.50/x
  3. Step 3: Cross multiply
    813,979.50x = 1,123,291.72 × 456,283.50
  4. Step 4: Simplify right side
    813,979.50x = 512,539,477,522.62
  5. Step 5: Solve for x
    x = 512,539,477,522.62/813,979.50
  6. Step 6: Final answer
    x = 629,671.24

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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.