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Finding the Fourth Proportional to 567,775.90, 783,531.45 and 309,653.27

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Solution

The fourth proportional to 567,775.90, 783,531.45 and 309,653.27 is: 427,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,775.90 : 783,531.45 = 309,653.27 : x
  2. Step 2: Convert to fraction form
    567,775.90/783,531.45 = 309,653.27/x
  3. Step 3: Cross multiply
    567,775.90x = 783,531.45 × 309,653.27
  4. Step 4: Simplify right side
    567,775.90x = 242,623,071,722.68
  5. Step 5: Solve for x
    x = 242,623,071,722.68/567,775.90
  6. Step 6: Final answer
    x = 427,321.89

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1.5x scale

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.