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Finding the Fourth Proportional to 569,794.69, 786,337.23 and 315,147.70

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Solution

The fourth proportional to 569,794.69, 786,337.23 and 315,147.70 is: 434,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,794.69 : 786,337.23 = 315,147.70 : x
  2. Step 2: Convert to fraction form
    569,794.69/786,337.23 = 315,147.70/x
  3. Step 3: Cross multiply
    569,794.69x = 786,337.23 × 315,147.70
  4. Step 4: Simplify right side
    569,794.69x = 247,812,369,458.87
  5. Step 5: Solve for x
    x = 247,812,369,458.87/569,794.69
  6. Step 6: Final answer
    x = 434,915.20

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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.