Home / 712,551.60-1,067,920.20-291,351.60

Finding the Fourth Proportional to 712,551.60, 1,067,920.20 and 291,351.60

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Solution

The fourth proportional to 712,551.60, 1,067,920.20 and 291,351.60 is: 436,656.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,551.60 : 1,067,920.20 = 291,351.60 : x
  2. Step 2: Convert to fraction form
    712,551.60/1,067,920.20 = 291,351.60/x
  3. Step 3: Cross multiply
    712,551.60x = 1,067,920.20 × 291,351.60
  4. Step 4: Simplify right side
    712,551.60x = 311,140,258,942.32
  5. Step 5: Solve for x
    x = 311,140,258,942.32/712,551.60
  6. Step 6: Final answer
    x = 436,656.46

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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.