Home / 781,570.23-1,171,742.89-308,609.61

Finding the Fourth Proportional to 781,570.23, 1,171,742.89 and 308,609.61

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Solution

The fourth proportional to 781,570.23, 1,171,742.89 and 308,609.61 is: 462,672.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,570.23 : 1,171,742.89 = 308,609.61 : x
  2. Step 2: Convert to fraction form
    781,570.23/1,171,742.89 = 308,609.61/x
  3. Step 3: Cross multiply
    781,570.23x = 1,171,742.89 × 308,609.61
  4. Step 4: Simplify right side
    781,570.23x = 361,611,116,303.17
  5. Step 5: Solve for x
    x = 361,611,116,303.17/781,570.23
  6. Step 6: Final answer
    x = 462,672.58

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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.