Home / 721,898.84-1,083,912.74-402,674.42

Finding the Fourth Proportional to 721,898.84, 1,083,912.74 and 402,674.42

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Solution

The fourth proportional to 721,898.84, 1,083,912.74 and 402,674.42 is: 604,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,898.84 : 1,083,912.74 = 402,674.42 : x
  2. Step 2: Convert to fraction form
    721,898.84/1,083,912.74 = 402,674.42/x
  3. Step 3: Cross multiply
    721,898.84x = 1,083,912.74 × 402,674.42
  4. Step 4: Simplify right side
    721,898.84x = 436,463,926,477.18
  5. Step 5: Solve for x
    x = 436,463,926,477.18/721,898.84
  6. Step 6: Final answer
    x = 604,605.39

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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.