Home / 509,741.20-764,417.40-154,637.20

Finding the Fourth Proportional to 509,741.20, 764,417.40 and 154,637.20

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Solution

The fourth proportional to 509,741.20, 764,417.40 and 154,637.20 is: 231,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,741.20 : 764,417.40 = 154,637.20 : x
  2. Step 2: Convert to fraction form
    509,741.20/764,417.40 = 154,637.20/x
  3. Step 3: Cross multiply
    509,741.20x = 764,417.40 × 154,637.20
  4. Step 4: Simplify right side
    509,741.20x = 118,207,366,367.28
  5. Step 5: Solve for x
    x = 118,207,366,367.28/509,741.20
  6. Step 6: Final answer
    x = 231,896.83

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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.