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Finding the Fourth Proportional to 567,678.96, 783,391.23 and 309,555.27

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Solution

The fourth proportional to 567,678.96, 783,391.23 and 309,555.27 is: 427,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,678.96 : 783,391.23 = 309,555.27 : x
  2. Step 2: Convert to fraction form
    567,678.96/783,391.23 = 309,555.27/x
  3. Step 3: Cross multiply
    567,678.96x = 783,391.23 × 309,555.27
  4. Step 4: Simplify right side
    567,678.96x = 242,502,883,718.28
  5. Step 5: Solve for x
    x = 242,502,883,718.28/567,678.96
  6. Step 6: Final answer
    x = 427,183.15

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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.