Home / 986,565.80-1,479,848.70-455,124.80

Finding the Fourth Proportional to 986,565.80, 1,479,848.70 and 455,124.80

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Solution

The fourth proportional to 986,565.80, 1,479,848.70 and 455,124.80 is: 682,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,565.80 : 1,479,848.70 = 455,124.80 : x
  2. Step 2: Convert to fraction form
    986,565.80/1,479,848.70 = 455,124.80/x
  3. Step 3: Cross multiply
    986,565.80x = 1,479,848.70 × 455,124.80
  4. Step 4: Simplify right side
    986,565.80x = 673,515,843,617.76
  5. Step 5: Solve for x
    x = 673,515,843,617.76/986,565.80
  6. Step 6: Final answer
    x = 682,687.20

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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.