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Finding the Fourth Proportional to 670,427.89, 925,209.64 and 408,798.50

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Solution

The fourth proportional to 670,427.89, 925,209.64 and 408,798.50 is: 564,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,427.89 : 925,209.64 = 408,798.50 : x
  2. Step 2: Convert to fraction form
    670,427.89/925,209.64 = 408,798.50/x
  3. Step 3: Cross multiply
    670,427.89x = 925,209.64 × 408,798.50
  4. Step 4: Simplify right side
    670,427.89x = 378,224,308,902.49
  5. Step 5: Solve for x
    x = 378,224,308,902.49/670,427.89
  6. Step 6: Final answer
    x = 564,153.60

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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.