Home / 729,178.41-1,006,317.05-406,893.86

Finding the Fourth Proportional to 729,178.41, 1,006,317.05 and 406,893.86

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Solution

The fourth proportional to 729,178.41, 1,006,317.05 and 406,893.86 is: 561,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,178.41 : 1,006,317.05 = 406,893.86 : x
  2. Step 2: Convert to fraction form
    729,178.41/1,006,317.05 = 406,893.86/x
  3. Step 3: Cross multiply
    729,178.41x = 1,006,317.05 × 406,893.86
  4. Step 4: Simplify right side
    729,178.41x = 409,464,221,792.26
  5. Step 5: Solve for x
    x = 409,464,221,792.26/729,178.41
  6. Step 6: Final answer
    x = 561,541.89

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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.