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Finding the Fourth Proportional to 605,176.80, 907,765.20 and 402,223.20

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Solution

The fourth proportional to 605,176.80, 907,765.20 and 402,223.20 is: 603,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,176.80 : 907,765.20 = 402,223.20 : x
  2. Step 2: Convert to fraction form
    605,176.80/907,765.20 = 402,223.20/x
  3. Step 3: Cross multiply
    605,176.80x = 907,765.20 × 402,223.20
  4. Step 4: Simplify right side
    605,176.80x = 365,124,223,592.64
  5. Step 5: Solve for x
    x = 365,124,223,592.64/605,176.80
  6. Step 6: Final answer
    x = 603,334.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.