Home / 1,213,925.30-1,821,989.55-615,302.90

Finding the Fourth Proportional to 1,213,925.30, 1,821,989.55 and 615,302.90

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Solution

The fourth proportional to 1,213,925.30, 1,821,989.55 and 615,302.90 is: 923,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,925.30 : 1,821,989.55 = 615,302.90 : x
  2. Step 2: Convert to fraction form
    1,213,925.30/1,821,989.55 = 615,302.90/x
  3. Step 3: Cross multiply
    1,213,925.30x = 1,821,989.55 × 615,302.90
  4. Step 4: Simplify right side
    1,213,925.30x = 1,121,075,453,884.70
  5. Step 5: Solve for x
    x = 1,121,075,453,884.70/1,213,925.30
  6. Step 6: Final answer
    x = 923,512.72

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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.