Home / 1,220,423.76-1,683,836.68-704,136.72

Finding the Fourth Proportional to 1,220,423.76, 1,683,836.68 and 704,136.72

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Solution

The fourth proportional to 1,220,423.76, 1,683,836.68 and 704,136.72 is: 971,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,423.76 : 1,683,836.68 = 704,136.72 : x
  2. Step 2: Convert to fraction form
    1,220,423.76/1,683,836.68 = 704,136.72/x
  3. Step 3: Cross multiply
    1,220,423.76x = 1,683,836.68 × 704,136.72
  4. Step 4: Simplify right side
    1,220,423.76x = 1,185,651,236,870.89
  5. Step 5: Solve for x
    x = 1,185,651,236,870.89/1,220,423.76
  6. Step 6: Final answer
    x = 971,507.83

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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.