Home / 671,728.80-1,006,718.40-272,042.40

Finding the Fourth Proportional to 671,728.80, 1,006,718.40 and 272,042.40

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Solution

The fourth proportional to 671,728.80, 1,006,718.40 and 272,042.40 is: 407,709.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,728.80 : 1,006,718.40 = 272,042.40 : x
  2. Step 2: Convert to fraction form
    671,728.80/1,006,718.40 = 272,042.40/x
  3. Step 3: Cross multiply
    671,728.80x = 1,006,718.40 × 272,042.40
  4. Step 4: Simplify right side
    671,728.80x = 273,870,089,660.16
  5. Step 5: Solve for x
    x = 273,870,089,660.16/671,728.80
  6. Step 6: Final answer
    x = 407,709.32

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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.