Home / 787,154.89-1,179,984.22-307,690.08

Finding the Fourth Proportional to 787,154.89, 1,179,984.22 and 307,690.08

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Solution

The fourth proportional to 787,154.89, 1,179,984.22 and 307,690.08 is: 461,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,154.89 : 1,179,984.22 = 307,690.08 : x
  2. Step 2: Convert to fraction form
    787,154.89/1,179,984.22 = 307,690.08/x
  3. Step 3: Cross multiply
    787,154.89x = 1,179,984.22 × 307,690.08
  4. Step 4: Simplify right side
    787,154.89x = 363,069,439,050.54
  5. Step 5: Solve for x
    x = 363,069,439,050.54/787,154.89
  6. Step 6: Final answer
    x = 461,242.69

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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.