Home / 712,219.20-1,067,810.40-291,278.40

Finding the Fourth Proportional to 712,219.20, 1,067,810.40 and 291,278.40

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Solution

The fourth proportional to 712,219.20, 1,067,810.40 and 291,278.40 is: 436,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,219.20 : 1,067,810.40 = 291,278.40 : x
  2. Step 2: Convert to fraction form
    712,219.20/1,067,810.40 = 291,278.40/x
  3. Step 3: Cross multiply
    712,219.20x = 1,067,810.40 × 291,278.40
  4. Step 4: Simplify right side
    712,219.20x = 311,030,104,815.36
  5. Step 5: Solve for x
    x = 311,030,104,815.36/712,219.20
  6. Step 6: Final answer
    x = 436,705.59

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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.