Home / 1,220,421.76-1,683,833.92-704,134.72

Finding the Fourth Proportional to 1,220,421.76, 1,683,833.92 and 704,134.72

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Solution

The fourth proportional to 1,220,421.76, 1,683,833.92 and 704,134.72 is: 971,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,421.76 : 1,683,833.92 = 704,134.72 : x
  2. Step 2: Convert to fraction form
    1,220,421.76/1,683,833.92 = 704,134.72/x
  3. Step 3: Cross multiply
    1,220,421.76x = 1,683,833.92 × 704,134.72
  4. Step 4: Simplify right side
    1,220,421.76x = 1,185,645,925,785.70
  5. Step 5: Solve for x
    x = 1,185,645,925,785.70/1,220,421.76
  6. Step 6: Final answer
    x = 971,505.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.