Home / 787,427.38-1,181,328.79-254,948.57

Finding the Fourth Proportional to 787,427.38, 1,181,328.79 and 254,948.57

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Solution

The fourth proportional to 787,427.38, 1,181,328.79 and 254,948.57 is: 382,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,427.38 : 1,181,328.79 = 254,948.57 : x
  2. Step 2: Convert to fraction form
    787,427.38/1,181,328.79 = 254,948.57/x
  3. Step 3: Cross multiply
    787,427.38x = 1,181,328.79 × 254,948.57
  4. Step 4: Simplify right side
    787,427.38x = 301,178,078,528.94
  5. Step 5: Solve for x
    x = 301,178,078,528.94/787,427.38
  6. Step 6: Final answer
    x = 382,483.62

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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.