Home / 813,317.83-1,218,693.54-300,277.47

Finding the Fourth Proportional to 813,317.83, 1,218,693.54 and 300,277.47

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Solution

The fourth proportional to 813,317.83, 1,218,693.54 and 300,277.47 is: 449,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,317.83 : 1,218,693.54 = 300,277.47 : x
  2. Step 2: Convert to fraction form
    813,317.83/1,218,693.54 = 300,277.47/x
  3. Step 3: Cross multiply
    813,317.83x = 1,218,693.54 × 300,277.47
  4. Step 4: Simplify right side
    813,317.83x = 365,946,218,592.69
  5. Step 5: Solve for x
    x = 365,946,218,592.69/813,317.83
  6. Step 6: Final answer
    x = 449,942.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.