Home / 1,293,065.61-1,784,302.78-720,159.09

Finding the Fourth Proportional to 1,293,065.61, 1,784,302.78 and 720,159.09

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Solution

The fourth proportional to 1,293,065.61, 1,784,302.78 and 720,159.09 is: 993,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,065.61 : 1,784,302.78 = 720,159.09 : x
  2. Step 2: Convert to fraction form
    1,293,065.61/1,784,302.78 = 720,159.09/x
  3. Step 3: Cross multiply
    1,293,065.61x = 1,784,302.78 × 720,159.09
  4. Step 4: Simplify right side
    1,293,065.61x = 1,284,981,866,329.27
  5. Step 5: Solve for x
    x = 1,284,981,866,329.27/1,293,065.61
  6. Step 6: Final answer
    x = 993,748.39

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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.