Home / 780,064.40-1,170,096.60-219,098.90

Finding the Fourth Proportional to 780,064.40, 1,170,096.60 and 219,098.90

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Solution

The fourth proportional to 780,064.40, 1,170,096.60 and 219,098.90 is: 328,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,064.40 : 1,170,096.60 = 219,098.90 : x
  2. Step 2: Convert to fraction form
    780,064.40/1,170,096.60 = 219,098.90/x
  3. Step 3: Cross multiply
    780,064.40x = 1,170,096.60 × 219,098.90
  4. Step 4: Simplify right side
    780,064.40x = 256,366,877,953.74
  5. Step 5: Solve for x
    x = 256,366,877,953.74/780,064.40
  6. Step 6: Final answer
    x = 328,648.35

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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.