Home / 839,728.06-1,259,462.22-307,124.53

Finding the Fourth Proportional to 839,728.06, 1,259,462.22 and 307,124.53

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Solution

The fourth proportional to 839,728.06, 1,259,462.22 and 307,124.53 is: 460,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,728.06 : 1,259,462.22 = 307,124.53 : x
  2. Step 2: Convert to fraction form
    839,728.06/1,259,462.22 = 307,124.53/x
  3. Step 3: Cross multiply
    839,728.06x = 1,259,462.22 × 307,124.53
  4. Step 4: Simplify right side
    839,728.06x = 386,811,742,370.26
  5. Step 5: Solve for x
    x = 386,811,742,370.26/839,728.06
  6. Step 6: Final answer
    x = 460,639.30

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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.