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Finding the Fourth Proportional to 570,010.84, 786,609.09 and 315,363.85

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Solution

The fourth proportional to 570,010.84, 786,609.09 and 315,363.85 is: 435,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,010.84 : 786,609.09 = 315,363.85 : x
  2. Step 2: Convert to fraction form
    570,010.84/786,609.09 = 315,363.85/x
  3. Step 3: Cross multiply
    570,010.84x = 786,609.09 × 315,363.85
  4. Step 4: Simplify right side
    570,010.84x = 248,068,069,100.87
  5. Step 5: Solve for x
    x = 248,068,069,100.87/570,010.84
  6. Step 6: Final answer
    x = 435,198.86

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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.